diff --git a/asm/pokeblock_feed.s b/asm/pokeblock_feed.s
index 9830db888..9cbee2fb9 100644
--- a/asm/pokeblock_feed.s
+++ b/asm/pokeblock_feed.s
@@ -704,7 +704,7 @@ sub_817A1C4: @ 817A1C4
 	lsls r0, 24
 	lsrs r0, 24
 	adds r1, r4, 0
-	bl sub_8136FE4
+	bl PokeblockGetGain
 	ldr r6, =gUnknown_0203BC9E
 	strh r0, [r6]
 	ldr r1, =gStringVar1
diff --git a/asm/rom6.s b/asm/rom6.s
index 15c7acb95..8080f5420 100644
--- a/asm/rom6.s
+++ b/asm/rom6.s
@@ -2779,7 +2779,7 @@ sub_8136C8C: @ 8136C8C
 	adds r2, r6
 	ldr r1, [r5]
 	adds r1, r2
-	bl sub_8136FE4
+	bl PokeblockGetGain
 	adds r4, r0, 0
 	lsls r4, 16
 	lsrs r4, 16
@@ -3177,8 +3177,8 @@ _08136FDE:
 	bx r1
 	thumb_func_end sub_8136F9C
 
-	thumb_func_start sub_8136FE4
-sub_8136FE4: @ 8136FE4
+	thumb_func_start PokeblockGetGain
+PokeblockGetGain: @ 8136FE4
 	push {r4-r7,lr}
 	mov r7, r9
 	mov r6, r8
@@ -3227,7 +3227,7 @@ _0813702A:
 	pop {r1}
 	bx r1
 	.pool
-	thumb_func_end sub_8136FE4
+	thumb_func_end PokeblockGetGain
 
 	thumb_func_start sub_8137044
 sub_8137044: @ 8137044
@@ -3261,7 +3261,7 @@ _08137074:
 	ldr r0, =gUnknown_085B2720
 	adds r1, r0
 	adds r0, r5, 0
-	bl sub_8136FE4
+	bl PokeblockGetGain
 	lsls r0, 16
 	cmp r0, 0
 	ble _081370A0
diff --git a/asm/wild_encounter.s b/asm/wild_encounter.s
index 70346e4d7..19b7eeba6 100644
--- a/asm/wild_encounter.s
+++ b/asm/wild_encounter.s
@@ -5,1251 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80B48B8
-sub_80B48B8: @ 80B48B8
-	ldr r1, =gUnknown_02038C00
-	strb r0, [r1]
-	bx lr
-	.pool
-	thumb_func_end sub_80B48B8
-
-	thumb_func_start sub_80B48C4
-sub_80B48C4: @ 80B48C4
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x8
-	lsls r0, 16
-	lsrs r0, 16
-	str r0, [sp]
-	lsls r1, 16
-	lsrs r1, 16
-	str r1, [sp, 0x4]
-	lsls r2, 24
-	lsrs r2, 24
-	ldr r3, =gUnknown_08553A7C
-	lsls r1, r2, 1
-	adds r1, r2
-	lsls r2, r1, 1
-	adds r2, r3
-	adds r0, r1, 0x1
-	lsls r0, 1
-	adds r0, r3
-	ldrh r0, [r0]
-	mov r9, r0
-	adds r1, 0x2
-	lsls r1, 1
-	adds r1, r3
-	ldrh r6, [r1]
-	ldrh r5, [r2]
-	cmp r5, r9
-	bhi _080B496E
-	ldr r0, =gMapHeader
-	mov r10, r0
-_080B4906:
-	movs r4, 0
-	mov r1, r10
-	ldr r0, [r1]
-	ldr r0, [r0]
-	cmp r4, r0
-	bge _080B4964
-	ldr r1, [sp]
-	lsls r0, r1, 16
-	asrs r0, 16
-	mov r8, r0
-	ldr r1, [sp, 0x4]
-	lsls r0, r1, 16
-	asrs r7, r0, 16
-_080B4920:
-	adds r0, r4, 0x7
-	adds r1, r5, 0x7
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r0, 24
-	bl MetatileBehavior_IsSurfableAndNotWaterfall
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B4954
-	adds r0, r6, 0x1
-	lsls r0, 16
-	lsrs r6, r0, 16
-	cmp r8, r4
-	bne _080B4954
-	cmp r7, r5
-	bne _080B4954
-	adds r0, r6, 0
-	b _080B4974
-	.pool
-_080B4954:
-	adds r0, r4, 0x1
-	lsls r0, 16
-	lsrs r4, r0, 16
-	mov r1, r10
-	ldr r0, [r1]
-	ldr r0, [r0]
-	cmp r4, r0
-	blt _080B4920
-_080B4964:
-	adds r0, r5, 0x1
-	lsls r0, 16
-	lsrs r5, r0, 16
-	cmp r5, r9
-	bls _080B4906
-_080B496E:
-	adds r0, r6, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-_080B4974:
-	add sp, 0x8
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B48C4
-
-	thumb_func_start sub_80B4984
-sub_80B4984: @ 80B4984
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	sub sp, 0x10
-	movs r7, 0
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldrh r1, [r0, 0x4]
-	movs r0, 0x88
-	lsls r0, 6
-	cmp r1, r0
-	bne _080B4A7A
-	add r5, sp, 0xC
-	mov r4, sp
-	adds r4, 0xE
-	adds r0, r5, 0
-	adds r1, r4, 0
-	bl GetXYCoordsOneStepInFrontOfPlayer
-	ldrh r0, [r5]
-	subs r0, 0x7
-	strh r0, [r5]
-	ldrh r0, [r4]
-	subs r0, 0x7
-	strh r0, [r4]
-	movs r0, 0
-	ldrsh r1, [r4, r0]
-	ldr r0, =gUnknown_08553A7C
-	mov r9, r5
-	mov r8, r4
-	ldrh r2, [r0, 0x6]
-	cmp r1, r2
-	blt _080B49D0
-	ldrh r3, [r0, 0x8]
-	cmp r1, r3
-	bgt _080B49D0
-	movs r7, 0x1
-_080B49D0:
-	mov r2, r8
-	movs r3, 0
-	ldrsh r1, [r2, r3]
-	ldrh r2, [r0, 0xC]
-	cmp r1, r2
-	blt _080B49E4
-	ldrh r0, [r0, 0xE]
-	cmp r1, r0
-	bgt _080B49E4
-	movs r7, 0x2
-_080B49E4:
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x31
-	bls _080B4A08
-	b _080B4A7A
-	.pool
-_080B4A04:
-	movs r0, 0x1
-	b _080B4A7C
-_080B4A08:
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldr r3, =0x00002e6a
-	adds r0, r3
-	ldrh r0, [r0]
-	bl sub_80B4AB8
-	movs r5, 0
-	ldr r6, =0x000001bf
-_080B4A1A:
-	bl sub_80B4A98
-	lsls r1, r5, 1
-	mov r2, sp
-	adds r4, r2, r1
-	lsls r0, 16
-	lsrs r0, 16
-	adds r1, r6, 0
-	bl __umodsi3
-	strh r0, [r4]
-	lsls r0, 16
-	cmp r0, 0
-	bne _080B4A38
-	strh r6, [r4]
-_080B4A38:
-	ldrh r0, [r4]
-	subs r0, 0x1
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x2
-	bls _080B4A4A
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-_080B4A4A:
-	cmp r5, 0x6
-	bne _080B4A1A
-	mov r3, r9
-	movs r1, 0
-	ldrsh r0, [r3, r1]
-	mov r2, r8
-	movs r3, 0
-	ldrsh r1, [r2, r3]
-	adds r2, r7, 0
-	bl sub_80B48C4
-	lsls r0, 16
-	lsrs r1, r0, 16
-	movs r5, 0
-_080B4A66:
-	lsls r0, r5, 1
-	add r0, sp
-	ldrh r0, [r0]
-	cmp r1, r0
-	beq _080B4A04
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x5
-	bls _080B4A66
-_080B4A7A:
-	movs r0, 0
-_080B4A7C:
-	add sp, 0x10
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end sub_80B4984
-
-	thumb_func_start sub_80B4A98
-sub_80B4A98: @ 80B4A98
-	ldr r2, =gUnknown_02038C04
-	ldr r1, [r2]
-	ldr r0, =0x41c64e6d
-	muls r0, r1
-	ldr r1, =0x00003039
-	adds r0, r1
-	str r0, [r2]
-	lsrs r0, 16
-	bx lr
-	.pool
-	thumb_func_end sub_80B4A98
-
-	thumb_func_start sub_80B4AB8
-sub_80B4AB8: @ 80B4AB8
-	lsls r0, 16
-	lsrs r0, 16
-	ldr r1, =gUnknown_02038C04
-	str r0, [r1]
-	bx lr
-	.pool
-	thumb_func_end sub_80B4AB8
-
-	thumb_func_start wild_pokemon_rand_grass
-wild_pokemon_rand_grass: @ 80B4AC8
-	push {lr}
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x13
-	bhi _080B4AE4
-	movs r0, 0
-	b _080B4B7E
-_080B4AE4:
-	adds r0, r1, 0
-	subs r0, 0x14
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x13
-	bhi _080B4AF4
-	movs r0, 0x1
-	b _080B4B7E
-_080B4AF4:
-	adds r0, r1, 0
-	subs r0, 0x28
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x9
-	bhi _080B4B04
-	movs r0, 0x2
-	b _080B4B7E
-_080B4B04:
-	adds r0, r1, 0
-	subs r0, 0x32
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x9
-	bhi _080B4B14
-	movs r0, 0x3
-	b _080B4B7E
-_080B4B14:
-	adds r0, r1, 0
-	subs r0, 0x3C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x9
-	bhi _080B4B24
-	movs r0, 0x4
-	b _080B4B7E
-_080B4B24:
-	adds r0, r1, 0
-	subs r0, 0x46
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x9
-	bhi _080B4B34
-	movs r0, 0x5
-	b _080B4B7E
-_080B4B34:
-	adds r0, r1, 0
-	subs r0, 0x50
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x4
-	bhi _080B4B44
-	movs r0, 0x6
-	b _080B4B7E
-_080B4B44:
-	adds r0, r1, 0
-	subs r0, 0x55
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x4
-	bhi _080B4B54
-	movs r0, 0x7
-	b _080B4B7E
-_080B4B54:
-	adds r0, r1, 0
-	subs r0, 0x5A
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bhi _080B4B64
-	movs r0, 0x8
-	b _080B4B7E
-_080B4B64:
-	adds r0, r1, 0
-	subs r0, 0x5E
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bhi _080B4B74
-	movs r0, 0x9
-	b _080B4B7E
-_080B4B74:
-	cmp r1, 0x62
-	beq _080B4B7C
-	movs r0, 0xB
-	b _080B4B7E
-_080B4B7C:
-	movs r0, 0xA
-_080B4B7E:
-	pop {r1}
-	bx r1
-	thumb_func_end wild_pokemon_rand_grass
-
-	thumb_func_start wild_pokemon_rand_water
-wild_pokemon_rand_water: @ 80B4B84
-	push {lr}
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 24
-	lsrs r1, r0, 24
-	adds r2, r1, 0
-	cmp r1, 0x3B
-	bhi _080B4BA2
-	movs r0, 0
-	b _080B4BD4
-_080B4BA2:
-	adds r0, r1, 0
-	subs r0, 0x3C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1D
-	bhi _080B4BB2
-	movs r0, 0x1
-	b _080B4BD4
-_080B4BB2:
-	adds r0, r1, 0
-	subs r0, 0x5A
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x4
-	bhi _080B4BC2
-	movs r0, 0x2
-	b _080B4BD4
-_080B4BC2:
-	adds r0, r2, 0
-	subs r0, 0x5F
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bls _080B4BD2
-	movs r0, 0x4
-	b _080B4BD4
-_080B4BD2:
-	movs r0, 0x3
-_080B4BD4:
-	pop {r1}
-	bx r1
-	thumb_func_end wild_pokemon_rand_water
-
-	thumb_func_start sub_80B4BD8
-sub_80B4BD8: @ 80B4BD8
-	push {r4-r6,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r6, r4, 0
-	movs r5, 0
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r4, 0x1
-	beq _080B4C12
-	cmp r4, 0x1
-	bgt _080B4C02
-	cmp r4, 0
-	beq _080B4C08
-	b _080B4C6C
-_080B4C02:
-	cmp r6, 0x2
-	beq _080B4C36
-	b _080B4C6C
-_080B4C08:
-	movs r5, 0x1
-	cmp r1, 0x45
-	bhi _080B4C6C
-	movs r5, 0
-	b _080B4C6C
-_080B4C12:
-	cmp r1, 0x3B
-	bhi _080B4C18
-	movs r5, 0x2
-_080B4C18:
-	adds r0, r1, 0
-	subs r0, 0x3C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x13
-	bhi _080B4C26
-	movs r5, 0x3
-_080B4C26:
-	adds r0, r1, 0
-	subs r0, 0x50
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x13
-	bhi _080B4C6C
-	movs r5, 0x4
-	b _080B4C6C
-_080B4C36:
-	cmp r1, 0x27
-	bhi _080B4C3C
-	movs r5, 0x5
-_080B4C3C:
-	adds r0, r1, 0
-	subs r0, 0x28
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x27
-	bhi _080B4C4A
-	movs r5, 0x6
-_080B4C4A:
-	adds r0, r1, 0
-	subs r0, 0x50
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0xE
-	bhi _080B4C58
-	movs r5, 0x7
-_080B4C58:
-	adds r0, r1, 0
-	subs r0, 0x5F
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bhi _080B4C66
-	movs r5, 0x8
-_080B4C66:
-	cmp r1, 0x63
-	bne _080B4C6C
-	movs r5, 0x9
-_080B4C6C:
-	adds r0, r5, 0
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B4BD8
-
-	thumb_func_start sub_80B4C74
-sub_80B4C74: @ 80B4C74
-	push {r4-r7,lr}
-	adds r4, r0, 0
-	ldrb r0, [r4, 0x1]
-	ldrb r1, [r4]
-	cmp r0, r1
-	bcc _080B4C86
-	ldrb r7, [r4]
-	adds r6, r0, 0
-	b _080B4C8A
-_080B4C86:
-	ldrb r7, [r4, 0x1]
-	ldrb r6, [r4]
-_080B4C8A:
-	subs r4, r6, r7
-	adds r4, 0x1
-	lsls r4, 24
-	lsrs r4, 24
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	adds r1, r4, 0
-	bl __modsi3
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r5, =gPlayerParty
-	adds r0, r5, 0
-	movs r1, 0x6
-	bl GetMonData
-	cmp r0, 0
-	bne _080B4CEA
-	adds r0, r5, 0
-	bl GetMonAbility
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x37
-	beq _080B4CC8
-	cmp r0, 0x48
-	beq _080B4CC8
-	cmp r0, 0x2E
-	bne _080B4CEA
-_080B4CC8:
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _080B4CE0
-	adds r0, r6, 0
-	b _080B4CF0
-	.pool
-_080B4CE0:
-	cmp r4, 0
-	beq _080B4CEA
-	subs r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-_080B4CEA:
-	adds r0, r7, r4
-	lsls r0, 24
-	lsrs r0, 24
-_080B4CF0:
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B4C74
-
-	thumb_func_start get_wild_data_index_for_map
-get_wild_data_index_for_map: @ 80B4CF8
-	push {r4-r6,lr}
-	movs r4, 0
-	ldr r0, =gWildMonHeaders
-	ldrb r1, [r0]
-	adds r5, r0, 0
-	cmp r1, 0xFF
-	beq _080B4D6C
-	ldr r6, =0x00006a18
-_080B4D08:
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r3, r0, r5
-	ldrb r1, [r3]
-	ldr r0, =gSaveBlock1Ptr
-	ldr r2, [r0]
-	movs r0, 0x4
-	ldrsb r0, [r2, r0]
-	cmp r1, r0
-	bne _080B4D58
-	ldrb r1, [r3, 0x1]
-	movs r0, 0x5
-	ldrsb r0, [r2, r0]
-	cmp r1, r0
-	bne _080B4D58
-	ldrh r0, [r2, 0x4]
-	cmp r0, r6
-	bne _080B4D44
-	ldr r0, =0x0000403e
-	bl VarGet
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x8
-	bls _080B4D3E
-	movs r0, 0
-_080B4D3E:
-	adds r0, r4, r0
-	lsls r0, 16
-	lsrs r4, r0, 16
-_080B4D44:
-	adds r0, r4, 0
-	b _080B4D6E
-	.pool
-_080B4D58:
-	adds r0, r4, 0x1
-	lsls r0, 16
-	lsrs r4, r0, 16
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r0, r5
-	ldrb r0, [r0]
-	cmp r0, 0xFF
-	bne _080B4D08
-_080B4D6C:
-	ldr r0, =0x0000ffff
-_080B4D6E:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end get_wild_data_index_for_map
-
-	thumb_func_start sub_80B4D78
-sub_80B4D78: @ 80B4D78
-	push {r4-r7,lr}
-	sub sp, 0x1C
-	bl GetSafariZoneFlag
-	cmp r0, 0x1
-	bne _080B4E0E
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x4F
-	bhi _080B4E0E
-	bl SafariZoneGetActivePokeblock
-	adds r7, r0, 0
-	cmp r7, 0
-	beq _080B4E0E
-	movs r5, 0
-_080B4DA6:
-	mov r1, sp
-	adds r0, r1, r5
-	strb r5, [r0]
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x18
-	bls _080B4DA6
-	movs r5, 0
-_080B4DB8:
-	adds r1, r5, 0x1
-	lsls r0, r1, 24
-	lsrs r4, r0, 24
-	adds r6, r1, 0
-	cmp r4, 0x18
-	bhi _080B4DE8
-	add r5, sp
-_080B4DC6:
-	bl Random
-	movs r1, 0x1
-	ands r1, r0
-	cmp r1, 0
-	beq _080B4DDE
-	ldrb r2, [r5]
-	mov r0, sp
-	adds r1, r0, r4
-	ldrb r0, [r1]
-	strb r0, [r5]
-	strb r2, [r1]
-_080B4DDE:
-	adds r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x18
-	bls _080B4DC6
-_080B4DE8:
-	lsls r0, r6, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x17
-	bls _080B4DB8
-	movs r5, 0
-_080B4DF2:
-	mov r1, sp
-	adds r4, r1, r5
-	ldrb r0, [r4]
-	adds r1, r7, 0
-	bl sub_8136FE4
-	lsls r0, 16
-	cmp r0, 0
-	bgt _080B4E48
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x18
-	bls _080B4DF2
-_080B4E0E:
-	ldr r4, =gPlayerParty
-	adds r0, r4, 0
-	movs r1, 0x6
-	bl GetMonData
-	cmp r0, 0
-	bne _080B4E4C
-	adds r0, r4, 0
-	bl GetMonAbility
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1C
-	bne _080B4E4C
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x1
-	ands r0, r1
-	cmp r0, 0
-	bne _080B4E4C
-	adds r0, r4, 0
-	movs r1, 0
-	bl GetMonData
-	b _080B4E54
-	.pool
-_080B4E48:
-	ldrb r0, [r4]
-	b _080B4E5E
-_080B4E4C:
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-_080B4E54:
-	movs r1, 0x19
-	bl __umodsi3
-	lsls r0, 24
-	lsrs r0, 24
-_080B4E5E:
-	add sp, 0x1C
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B4D78
-
-	thumb_func_start sub_80B4E68
-sub_80B4E68: @ 80B4E68
-	push {r4-r7,lr}
-	sub sp, 0xC
-	lsls r0, 16
-	lsrs r6, r0, 16
-	lsls r1, 24
-	lsrs r7, r1, 24
-	bl ZeroEnemyPartyMons
-	movs r2, 0x1
-	ldr r1, =gBaseStats
-	lsls r0, r6, 3
-	subs r0, r6
-	lsls r0, 2
-	adds r0, r1
-	ldrb r0, [r0, 0x10]
-	cmp r0, 0
-	beq _080B4E96
-	cmp r0, 0
-	blt _080B4E98
-	cmp r0, 0xFF
-	bgt _080B4E98
-	cmp r0, 0xFE
-	blt _080B4E98
-_080B4E96:
-	movs r2, 0
-_080B4E98:
-	cmp r2, 0
-	beq _080B4F28
-	ldr r5, =gPlayerParty
-	adds r0, r5, 0
-	movs r1, 0x6
-	bl GetMonData
-	cmp r0, 0
-	bne _080B4F28
-	adds r0, r5, 0
-	bl GetMonAbility
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x38
-	bne _080B4F28
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x3
-	bl __umodsi3
-	lsls r0, 16
-	cmp r0, 0
-	beq _080B4F28
-	adds r0, r5, 0
-	movs r1, 0xB
-	bl GetMonData
-	adds r4, r0, 0
-	lsls r4, 16
-	lsrs r4, 16
-	adds r0, r5, 0
-	movs r1, 0
-	bl GetMonData
-	adds r1, r0, 0
-	adds r0, r4, 0
-	bl GetGenderFromSpeciesAndPersonality
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0xFE
-	bne _080B4F00
-	movs r4, 0
-	b _080B4F02
-	.pool
-_080B4F00:
-	movs r4, 0xFE
-_080B4F02:
-	bl sub_80B4D78
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, =gEnemyParty
-	str r4, [sp]
-	str r0, [sp, 0x4]
-	movs r0, 0
-	str r0, [sp, 0x8]
-	adds r0, r1, 0
-	adds r1, r6, 0
-	adds r2, r7, 0
-	movs r3, 0x20
-	bl CreateMonWithGenderNatureLetter
-	b _080B4F40
-	.pool
-_080B4F28:
-	bl sub_80B4D78
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, =gEnemyParty
-	str r0, [sp]
-	adds r0, r1, 0
-	adds r1, r6, 0
-	adds r2, r7, 0
-	movs r3, 0x20
-	bl CreateMonWithNature
-_080B4F40:
-	add sp, 0xC
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80B4E68
-
-	thumb_func_start sub_80B4F4C
-sub_80B4F4C: @ 80B4F4C
-	push {r4-r6,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	lsls r1, 24
-	lsrs r3, r1, 24
-	adds r4, r3, 0
-	lsls r2, 24
-	lsrs r6, r2, 24
-	movs r1, 0
-	mov r0, sp
-	strb r1, [r0]
-	cmp r3, 0x1
-	beq _080B4FA0
-	cmp r3, 0x1
-	bgt _080B4F70
-	cmp r3, 0
-	beq _080B4F76
-	b _080B4FBA
-_080B4F70:
-	cmp r4, 0x2
-	beq _080B4FB2
-	b _080B4FBA
-_080B4F76:
-	ldr r0, [r5, 0x4]
-	movs r1, 0x8
-	movs r2, 0x2A
-	mov r3, sp
-	bl TryGetAbilityInfluencedWildMonIndex
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B4FBA
-	ldr r0, [r5, 0x4]
-	movs r1, 0xD
-	movs r2, 0x9
-	mov r3, sp
-	bl TryGetAbilityInfluencedWildMonIndex
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B4FBA
-	bl wild_pokemon_rand_grass
-	b _080B4FB6
-_080B4FA0:
-	ldr r0, [r5, 0x4]
-	movs r1, 0xD
-	movs r2, 0x9
-	mov r3, sp
-	bl TryGetAbilityInfluencedWildMonIndex
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B4FBA
-_080B4FB2:
-	bl wild_pokemon_rand_water
-_080B4FB6:
-	mov r1, sp
-	strb r0, [r1]
-_080B4FBA:
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r1, 2
-	ldr r0, [r5, 0x4]
-	adds r0, r1
-	bl sub_80B4C74
-	lsls r0, 24
-	lsrs r4, r0, 24
-	movs r0, 0x1
-	ands r0, r6
-	cmp r0, 0
-	beq _080B4FE0
-	adds r0, r4, 0
-	bl sub_80B58CC
-	lsls r0, 24
-	cmp r0, 0
-	beq _080B5000
-_080B4FE0:
-	ldr r0, =gMapHeader
-	ldrh r1, [r0, 0x12]
-	movs r0, 0xB3
-	lsls r0, 1
-	cmp r1, r0
-	beq _080B5008
-	movs r0, 0x2
-	ands r0, r6
-	cmp r0, 0
-	beq _080B5008
-	adds r0, r4, 0
-	bl DoKeenEyeIntimidateWildEncounterTest
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B5008
-_080B5000:
-	movs r0, 0
-	b _080B501C
-	.pool
-_080B5008:
-	mov r0, sp
-	ldrb r0, [r0]
-	ldr r1, [r5, 0x4]
-	lsls r0, 2
-	adds r0, r1
-	ldrh r0, [r0, 0x2]
-	adds r1, r4, 0
-	bl sub_80B4E68
-	movs r0, 0x1
-_080B501C:
-	add sp, 0x4
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B4F4C
-
-	thumb_func_start sub_80B5024
-sub_80B5024: @ 80B5024
-	push {r4,r5,lr}
-	adds r5, r0, 0
-	lsls r0, r1, 24
-	lsrs r0, 24
-	bl sub_80B4BD8
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 22
-	ldr r0, [r5, 0x4]
-	adds r0, r4
-	bl sub_80B4C74
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	ldr r0, [r5, 0x4]
-	adds r0, r4, r0
-	ldrh r0, [r0, 0x2]
-	bl sub_80B4E68
-	ldr r0, [r5, 0x4]
-	adds r4, r0
-	ldrh r0, [r4, 0x2]
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B5024
-
-	thumb_func_start SetUpMassOutbreakEncounter
-SetUpMassOutbreakEncounter: @ 80B505C
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	movs r1, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _080B508C
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldr r1, =0x00002b94
-	adds r0, r1
-	ldrb r0, [r0]
-	bl sub_80B58CC
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B508C
-	movs r0, 0
-	b _080B50C6
-	.pool
-_080B508C:
-	ldr r0, =gSaveBlock1Ptr
-	ldr r1, [r0]
-	ldr r2, =0x00002b90
-	adds r0, r1, r2
-	ldrh r0, [r0]
-	adds r2, 0x4
-	adds r1, r2
-	ldrb r1, [r1]
-	bl sub_80B4E68
-	movs r4, 0
-_080B50A2:
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	lsls r1, r4, 1
-	ldr r2, =0x00002b98
-	adds r0, r2
-	adds r0, r1
-	ldrh r1, [r0]
-	lsls r2, r4, 24
-	lsrs r2, 24
-	ldr r0, =gEnemyParty
-	bl SetMonMoveSlot
-	adds r0, r4, 0x1
-	lsls r0, 16
-	lsrs r4, r0, 16
-	cmp r4, 0x3
-	bls _080B50A2
-	movs r0, 0x1
-_080B50C6:
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end SetUpMassOutbreakEncounter
-
-	thumb_func_start DoMassOutbreakEncounterTest
-DoMassOutbreakEncounterTest: @ 80B50DC
-	push {r4,lr}
-	ldr r4, =gSaveBlock1Ptr
-	ldr r2, [r4]
-	ldr r1, =0x00002b90
-	adds r0, r2, r1
-	ldrh r0, [r0]
-	cmp r0, 0
-	beq _080B513C
-	movs r1, 0x5
-	ldrsb r1, [r2, r1]
-	ldr r3, =0x00002b92
-	adds r0, r2, r3
-	ldrb r0, [r0]
-	cmp r1, r0
-	bne _080B513C
-	movs r1, 0x4
-	ldrsb r1, [r2, r1]
-	adds r3, 0x1
-	adds r0, r2, r3
-	ldrb r0, [r0]
-	cmp r1, r0
-	bne _080B513C
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	ldr r1, [r4]
-	ldr r2, =0x00002ba1
-	adds r1, r2
-	lsls r0, 16
-	lsrs r0, 16
-	ldrb r1, [r1]
-	cmp r0, r1
-	bcs _080B513C
-	movs r0, 0x1
-	b _080B513E
-	.pool
-_080B513C:
-	movs r0, 0
-_080B513E:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end DoMassOutbreakEncounterTest
-
-	thumb_func_start DoWildEncounterRateDiceRoll
-DoWildEncounterRateDiceRoll: @ 80B5144
-	push {r4,lr}
-	adds r4, r0, 0
-	lsls r4, 16
-	lsrs r4, 16
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0xB4
-	lsls r1, 4
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, r4
-	bcc _080B5168
-	movs r0, 0
-	b _080B516A
-_080B5168:
-	movs r0, 0x1
-_080B516A:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end DoWildEncounterRateDiceRoll
-
-	thumb_func_start DoWildEncounterRateTest
-DoWildEncounterRateTest: @ 80B5170
-	push {r4,lr}
-	sub sp, 0x4
-	str r0, [sp]
-	lsls r1, 24
-	lsrs r4, r1, 24
-	lsls r0, 4
-	str r0, [sp]
-	movs r0, 0x6
-	bl TestPlayerAvatarFlags
-	lsls r0, 24
-	cmp r0, 0
-	beq _080B519A
-	ldr r1, [sp]
-	lsls r0, r1, 2
-	adds r0, r1
-	lsls r0, 4
-	movs r1, 0x64
-	bl __udivsi3
-	str r0, [sp]
-_080B519A:
-	mov r0, sp
-	bl affects_encounter_rate_based_on_flags
-	mov r0, sp
-	bl ApplyCleanseTagWildEncounterRateReduction
-	cmp r4, 0
-	bne _080B5216
-	ldr r4, =gPlayerParty
-	adds r0, r4, 0
-	movs r1, 0x6
-	bl GetMonData
-	cmp r0, 0
-	bne _080B5216
-	adds r0, r4, 0
-	bl GetMonAbility
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B51E8
-	ldr r0, =gMapHeader
-	ldrh r1, [r0, 0x12]
-	ldr r0, =0x00000169
-	cmp r1, r0
-	bne _080B5210
-	ldr r1, [sp]
-	lsls r0, r1, 1
-	adds r0, r1
-	lsrs r0, 2
-	b _080B5214
-	.pool
-_080B51E8:
-	cmp r0, 0x23
-	bne _080B51F2
-	ldr r0, [sp]
-	lsls r0, 1
-	b _080B5214
-_080B51F2:
-	cmp r0, 0x49
-	beq _080B5210
-	cmp r0, 0x47
-	bne _080B5200
-	ldr r0, [sp]
-	lsls r0, 1
-	b _080B5214
-_080B5200:
-	cmp r0, 0x8
-	bne _080B5216
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	adds r0, 0x2E
-	ldrb r0, [r0]
-	cmp r0, 0x8
-	bne _080B5216
-_080B5210:
-	ldr r0, [sp]
-	lsrs r0, 1
-_080B5214:
-	str r0, [sp]
-_080B5216:
-	ldr r0, [sp]
-	movs r1, 0xB4
-	lsls r1, 4
-	cmp r0, r1
-	bls _080B5222
-	str r1, [sp]
-_080B5222:
-	ldr r0, [sp]
-	lsls r0, 16
-	lsrs r0, 16
-	bl DoWildEncounterRateDiceRoll
-	lsls r0, 24
-	lsrs r0, 24
-	add sp, 0x4
-	pop {r4}
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end DoWildEncounterRateTest
 
 	thumb_func_start DoGlobalWildEncounterDiceRoll
 DoGlobalWildEncounterDiceRoll: @ 80B523C
@@ -1307,13 +62,13 @@ is_it_battle_time_2: @ 80B5288
 	lsls r1, 16
 	lsrs r7, r1, 16
 	mov r8, r7
-	ldr r0, =gUnknown_02038C00
+	ldr r0, =sWildEncountersDisabled
 	ldrb r0, [r0]
 	cmp r0, 0x1
 	bne _080B52A6
 	b _080B54FE
 _080B52A6:
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r5, r0, 16
 	ldr r0, =0x0000ffff
@@ -1355,7 +110,7 @@ _080B52F8:
 	ldr r0, [r4]
 	movs r1, 0
 	movs r2, 0x2
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1410,7 +165,7 @@ _080B5372:
 	ldr r0, [r4]
 	movs r1, 0
 	movs r2, 0x2
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1489,7 +244,7 @@ _080B5418:
 	ldr r0, [r0]
 	movs r1, 0
 	movs r2, 0x3
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1561,7 +316,7 @@ _080B54BA:
 	ldr r1, =0x000031dc
 	adds r0, r1
 	ldrb r0, [r0, 0xC]
-	bl sub_80B58CC
+	bl IsWildLevelAllowedByRepel
 	lsls r0, 24
 	cmp r0, 0
 	beq _080B54FE
@@ -1573,7 +328,7 @@ _080B54E4:
 	ldr r0, [r4]
 	movs r1, 0x1
 	movs r2, 0x3
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1596,7 +351,7 @@ _080B5500:
 	thumb_func_start rock_smash_wild_pokemon_encounter
 rock_smash_wild_pokemon_encounter: @ 80B550C
 	push {r4,lr}
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r2, r0, 16
 	ldr r0, =0x0000ffff
@@ -1621,7 +376,7 @@ rock_smash_wild_pokemon_encounter: @ 80B550C
 	adds r0, r4, 0
 	movs r1, 0x2
 	movs r2, 0x3
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r4, r0, 24
 	cmp r4, 0x1
@@ -1652,7 +407,7 @@ SweetScentWildEncounter: @ 80B5578
 	mov r0, sp
 	adds r1, r5, 0
 	bl PlayerGetDestCoords
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r4, r0, 16
 	ldr r0, =0x0000ffff
@@ -1676,7 +431,7 @@ SweetScentWildEncounter: @ 80B5578
 	ldr r0, [r0]
 	movs r1, 0
 	movs r2, 0
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1709,7 +464,7 @@ _080B55EC:
 	ldr r0, [r0]
 	movs r1, 0
 	movs r2, 0
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
@@ -1758,7 +513,7 @@ _080B5680:
 	adds r0, r4, 0
 	movs r1, 0
 	movs r2, 0
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 	b _080B56EA
 _080B568C:
 	mov r0, sp
@@ -1802,7 +557,7 @@ _080B56E0:
 	adds r0, r4, 0
 	movs r1, 0x1
 	movs r2, 0
-	bl sub_80B4F4C
+	bl TryGenerateWildMon
 _080B56EA:
 	bl sub_80B0698
 	movs r0, 0x1
@@ -1819,7 +574,7 @@ _080B56F4:
 	thumb_func_start GetFishingWildMonListHeader
 GetFishingWildMonListHeader: @ 80B56FC
 	push {lr}
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r2, r0, 16
 	ldr r0, =0x0000ffff
@@ -1849,25 +604,25 @@ sub_80B5734: @ 80B5734
 	push {r4,r5,lr}
 	lsls r0, 24
 	lsrs r5, r0, 24
-	bl sub_80B4984
+	bl CheckFeebas
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
 	bne _080B5764
 	ldr r4, =gUnknown_08553A78
 	adds r0, r4, 0
-	bl sub_80B4C74
+	bl ChooseWildMonLevel
 	adds r1, r0, 0
 	lsls r1, 24
 	lsrs r1, 24
 	ldrh r4, [r4, 0x2]
 	adds r0, r4, 0
-	bl sub_80B4E68
+	bl CreateWildMon
 	b _080B5784
 	.pool
 _080B5764:
 	ldr r4, =gWildMonHeaders
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r0, 16
 	lsls r1, r0, 2
@@ -1877,7 +632,7 @@ _080B5764:
 	adds r1, r4
 	ldr r0, [r1]
 	adds r1, r5, 0
-	bl sub_80B5024
+	bl GenerateFishingWildMon
 	lsls r0, 16
 	lsrs r4, r0, 16
 _080B5784:
@@ -1898,7 +653,7 @@ wild_pokemon_rand_for_map: @ 80B57A0
 	adds r6, r0, 0
 	movs r0, 0
 	strb r0, [r6]
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r3, r0, 16
 	ldr r0, =0x0000ffff
@@ -1929,7 +684,7 @@ _080B57E0:
 _080B57E6:
 	movs r0, 0x1
 	strb r0, [r6]
-	bl wild_pokemon_rand_water
+	bl ChooseWildMonIndex_WaterRock
 	lsls r0, 24
 	ldr r1, [r4, 0x4]
 	b _080B5820
@@ -1945,12 +700,12 @@ _080B57F4:
 	bls _080B5818
 	movs r0, 0x1
 	strb r0, [r6]
-	bl wild_pokemon_rand_water
+	bl ChooseWildMonIndex_WaterRock
 	lsls r0, 24
 	ldr r1, [r4, 0x4]
 	b _080B5820
 _080B5818:
-	bl wild_pokemon_rand_grass
+	bl ChooseWildMonIndex_Land
 	lsls r0, 24
 	ldr r1, [r5, 0x4]
 _080B5820:
@@ -1966,7 +721,7 @@ _080B5826:
 	thumb_func_start sub_80B582C
 sub_80B582C: @ 80B582C
 	push {r4,lr}
-	bl get_wild_data_index_for_map
+	bl GetCurrentMapWildMonHeaderId
 	lsls r0, 16
 	lsrs r2, r0, 16
 	ldr r0, =0x0000ffff
@@ -1981,7 +736,7 @@ sub_80B582C: @ 80B582C
 	ldr r4, [r0]
 	cmp r4, 0
 	beq _080B5868
-	bl wild_pokemon_rand_water
+	bl ChooseWildMonIndex_WaterRock
 	lsls r0, 24
 	ldr r1, [r4, 0x4]
 	lsrs r0, 22
@@ -2039,8 +794,8 @@ _080B58C6:
 	bx r1
 	thumb_func_end sub_80B5870
 
-	thumb_func_start sub_80B58CC
-sub_80B58CC: @ 80B58CC
+	thumb_func_start IsWildLevelAllowedByRepel
+IsWildLevelAllowedByRepel: @ 80B58CC
 	push {r4-r6,lr}
 	lsls r0, 24
 	lsrs r6, r0, 24
@@ -2089,11 +844,11 @@ _080B592C:
 	pop {r4-r6}
 	pop {r1}
 	bx r1
-	thumb_func_end sub_80B58CC
+	thumb_func_end IsWildLevelAllowedByRepel
 
-	thumb_func_start DoKeenEyeIntimidateWildEncounterTest
-@ _BOOL1 DoKeenEyeIntimidateWildEncounterTest(u8 wildMonLevel)
-DoKeenEyeIntimidateWildEncounterTest: @ 80B5934
+	thumb_func_start IsAbilityAllowingEncounter
+@ _BOOL1 IsAbilityAllowingEncounter(u8 wildMonLevel)
+IsAbilityAllowingEncounter: @ 80B5934
 	push {r4,r5,lr}
 	lsls r0, 24
 	lsrs r5, r0, 24
@@ -2138,7 +893,7 @@ _080B598A:
 	pop {r4,r5}
 	pop {r1}
 	bx r1
-	thumb_func_end DoKeenEyeIntimidateWildEncounterTest
+	thumb_func_end IsAbilityAllowingEncounter
 
 	thumb_func_start TryGetRandomWildMonIndexByType
 @ _BOOL1 TryGetRandomWildMonIndexByType(WildMonEntry *mons, u8 type, u8 numMons, u8 *monIndex)
@@ -2295,9 +1050,9 @@ _080B5AA6:
 	bx r1
 	thumb_func_end TryGetAbilityInfluencedWildMonIndex
 
-	thumb_func_start affects_encounter_rate_based_on_flags
-@ void affects_encounter_rate_based_on_flags(u32 *val)
-affects_encounter_rate_based_on_flags: @ 80B5AB0
+	thumb_func_start ApplyFluteEncounterRateMod
+@ void ApplyFluteEncounterRateMod(u32 *val)
+ApplyFluteEncounterRateMod: @ 80B5AB0
 	push {r4,lr}
 	adds r4, r0, 0
 	ldr r0, =0x000008ad
@@ -2327,10 +1082,10 @@ _080B5AE4:
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end affects_encounter_rate_based_on_flags
+	thumb_func_end ApplyFluteEncounterRateMod
 
-	thumb_func_start ApplyCleanseTagWildEncounterRateReduction
-ApplyCleanseTagWildEncounterRateReduction: @ 80B5AF0
+	thumb_func_start ApplyCleanseTagEncounterRateMod
+ApplyCleanseTagEncounterRateMod: @ 80B5AF0
 	push {r4,lr}
 	adds r4, r0, 0
 	ldr r0, =gPlayerParty
@@ -2348,6 +1103,6 @@ _080B5B0C:
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end ApplyCleanseTagWildEncounterRateReduction
+	thumb_func_end ApplyCleanseTagEncounterRateMod
 
 	.align 2, 0 @ Don't pad with nop.
diff --git a/data/wild_encounter.s b/data/wild_encounter.s
index ddb842a76..8540fefac 100644
--- a/data/wild_encounter.s
+++ b/data/wild_encounter.s
@@ -18,5 +18,5 @@ gUnknown_08553A14:: @ 8553A14
 gUnknown_08553A78:: @ 8553A78
 	.incbin "baserom.gba", 0x553a78, 0x4
 
-gUnknown_08553A7C:: @ 8553A7C
+gRoute119WaterTileData:: @ 8553A7C
 	.incbin "baserom.gba", 0x553a7c, 0x14
diff --git a/include/global.h b/include/global.h
index 3421517d7..7547d523b 100644
--- a/include/global.h
+++ b/include/global.h
@@ -579,7 +579,7 @@ struct SaveBlock1
     /*0x2BB0*/ u16 unk2BB0[6];
     /*0x2BBC*/ u16 unk2BBC[6];
     /*0x2BC8*/ u16 unk2BC8[6];
-    /*0x2BD4*/ u16 unk2BD4[3];
+    /*0x2BD4*/ u16 unk2BD4[6];
     /*0x2BE0*/ struct MailStruct mail[16];
     /*0x2E20*/ u8 additionalPhrases[5]; // bitfield for 33 additional phrases in easy chat system
     /*0x2E25*/ u8 unk2E25[3]; // possibly padding?
diff --git a/include/pokeblock.h b/include/pokeblock.h
index 5d52f8e55..b0e93f0e5 100644
--- a/include/pokeblock.h
+++ b/include/pokeblock.h
@@ -23,6 +23,7 @@ enum
 };
 
 void ClearPokeblocks(void);
+s16 PokeblockGetGain(u8, const struct Pokeblock *);
 
 /*
 void sub_810B96C(void);
@@ -32,7 +33,6 @@ s16 GetPokeblockData(const struct Pokeblock *, u8);
 u8 sub_810C9E8(struct Pokeblock *);
 void sub_810BA7C(u8);
 bool8 PokeblockClearIfExists(u8);
-s16 PokeblockGetGain(u8, const struct Pokeblock *);
 u8 sub_810CB68(u8, u8*);
 void PokeblockCopyName(struct Pokeblock *pokeblock, u8 *dest);
 void CB2_PreparePokeblockFeedScene(void);
diff --git a/include/vars.h b/include/vars.h
index f8057d4b5..763b7379d 100644
--- a/include/vars.h
+++ b/include/vars.h
@@ -30,6 +30,7 @@
 #define VAR_RESET_RTC_ENABLE       0x402C
 
 #define VAR_0x4037                 0x4037
+#define VAR_ALTERING_CAVE_WILD_SET 0x403E
 #define VAR_DAYS                   0x4040
 
 #define VAR_DEPT_STORE_FLOOR       0x4043
diff --git a/include/wild_encounter.h b/include/wild_encounter.h
new file mode 100644
index 000000000..c9d7c3fa1
--- /dev/null
+++ b/include/wild_encounter.h
@@ -0,0 +1,39 @@
+#ifndef GUARD_WILD_ENCOUNTER_H
+#define GUARD_WILD_ENCOUNTER_H
+
+struct WildPokemon
+{
+    u8 minLevel;
+    u8 maxLevel;
+    u16 species;
+};
+
+struct WildPokemonInfo
+{
+    u8 encounterRate;
+    const struct WildPokemon *wildPokemon;
+};
+
+struct WildPokemonHeader
+{
+    u8 mapGroup;
+    u8 mapNum;
+    const struct WildPokemonInfo *landMonsInfo;
+    const struct WildPokemonInfo *waterMonsInfo;
+    const struct WildPokemonInfo *rockSmashMonsInfo;
+    const struct WildPokemonInfo *fishingMonsInfo;
+};
+
+extern const struct WildPokemonHeader gWildMonHeaders[];
+
+void DisableWildEncounters(bool8 disabled);
+bool8 StandardWildEncounter(u16 a, u16 b);
+void ScrSpecial_RockSmashWildEncounter(void);
+bool8 SweetScentWildEncounter(void);
+bool8 DoesCurrentMapHaveFishingMons(void);
+void FishingWildEncounter(u8 rod);
+u16 GetLocalWildMon(bool8 *isWaterMon);
+u16 GetLocalWaterMon(void);
+bool8 UpdateRepelCounter(void);
+
+#endif // GUARD_WILD_ENCOUNTER_H
diff --git a/ld_script.txt b/ld_script.txt
index 2c958ea5a..b04f2f9af 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -124,6 +124,7 @@ SECTIONS {
         asm/battle_setup.o(.text);
         asm/cable_club.o(.text);
         asm/trainer_see.o(.text);
+        src/wild_encounter.o(.text);
         asm/wild_encounter.o(.text);
         asm/field_effect.o(.text);
         asm/unknown_task.o(.text);
diff --git a/src/wild_encounter.c b/src/wild_encounter.c
new file mode 100644
index 000000000..7d4cc7794
--- /dev/null
+++ b/src/wild_encounter.c
@@ -0,0 +1,483 @@
+#include "global.h"
+#include "wild_encounter.h"
+#include "pokemon.h"
+#include "species.h"
+#include "metatile_behavior.h"
+#include "fieldmap.h"
+#include "rng.h"
+#include "map_constants.h"
+#include "field_player_avatar.h"
+#include "abilities.h"
+#include "event_data.h"
+#include "safari_zone.h"
+#include "pokeblock.h"
+
+EWRAM_DATA u8 sWildEncountersDisabled = 0;
+EWRAM_DATA u32 sFeebasRngValue = 0;
+
+#define NUM_FEEBAS_SPOTS 6
+
+extern const u16 gRoute119WaterTileData[];
+
+// this file's functions
+u16 FeebasRandom(void);
+void FeebasSeedRng(u16 seed);
+bool8 IsWildLevelAllowedByRepel(u8 level);
+void ApplyFluteEncounterRateMod(u32 *encRate);
+void ApplyCleanseTagEncounterRateMod(u32 *encRate);
+bool8 TryGetAbilityInfluencedWildMonIndex(const struct WildPokemon *wildMon, u8 type, u8 ability, u8 *monIndex);
+bool8 IsAbilityAllowingEncounter(u8 level);
+
+void DisableWildEncounters(bool8 disabled)
+{
+    sWildEncountersDisabled = disabled;
+}
+
+u16 GetRoute119WaterTileNum(s16 x, s16 y, u8 section)
+{
+    u16 xCur;
+    u16 yCur;
+    u16 yMin = gRoute119WaterTileData[section * 3 + 0];
+    u16 yMax = gRoute119WaterTileData[section * 3 + 1];
+    u16 tileNum = gRoute119WaterTileData[section * 3 + 2];
+
+    for (yCur = yMin; yCur <= yMax; yCur++)
+    {
+        for (xCur = 0; xCur < gMapHeader.mapData->width; xCur++)
+        {
+            u8 tileBehaviorId = MapGridGetMetatileBehaviorAt(xCur + 7, yCur + 7);
+            if (MetatileBehavior_IsSurfableAndNotWaterfall(tileBehaviorId) == TRUE)
+            {
+                tileNum++;
+                if (x == xCur && y == yCur)
+                    return tileNum;
+            }
+        }
+    }
+    return tileNum + 1;
+}
+
+bool8 CheckFeebas(void)
+{
+    u8 i;
+    u16 feebasSpots[NUM_FEEBAS_SPOTS];
+    s16 x;
+    s16 y;
+    u8 route119section = 0;
+    u16 waterTileNum;
+
+    if (gSaveBlock1Ptr->location.mapGroup == MAP_GROUP_ROUTE119
+     && gSaveBlock1Ptr->location.mapNum == MAP_ID_ROUTE119)
+    {
+        GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+        x -= 7;
+        y -= 7;
+
+#ifdef NONMATCHING
+        if (y >= gRoute119WaterTileData[3 * 1 + 0] && y <= gRoute119WaterTileData[3 * 1 + 1])
+            route119section = 1;
+        if (y >= gRoute119WaterTileData[3 * 2 + 0] && y <= gRoute119WaterTileData[3 * 2 + 1])
+            route119section = 2;
+#else
+        {
+            register const u16 *arr asm("r0");
+            if (y >= (arr = gRoute119WaterTileData)[3 * 1 + 0] && y <= arr[3 * 1 + 1])
+                route119section = 1;
+            if (y >= arr[3 * 2 + 0] && y <= arr[3 * 2 + 1])
+                route119section = 2;
+        }
+#endif
+
+        if (Random() % 100 > 49) // 50% chance of encountering Feebas
+            return FALSE;
+
+        FeebasSeedRng(gSaveBlock1Ptr->easyChatPairs[0].unk2);
+        for (i = 0; i != NUM_FEEBAS_SPOTS;)
+        {
+            feebasSpots[i] = FeebasRandom() % 447;
+            if (feebasSpots[i] == 0)
+                feebasSpots[i] = 447;
+            if (feebasSpots[i] < 1 || feebasSpots[i] >= 4)
+                i++;
+        }
+        waterTileNum = GetRoute119WaterTileNum(x, y, route119section);
+        for (i = 0; i < NUM_FEEBAS_SPOTS; i++)
+        {
+            if (waterTileNum == feebasSpots[i])
+                return TRUE;
+        }
+    }
+    return FALSE;
+}
+
+u16 FeebasRandom(void)
+{
+    sFeebasRngValue = 12345 + 0x41C64E6D * sFeebasRngValue;
+    return sFeebasRngValue >> 16;
+}
+
+void FeebasSeedRng(u16 seed)
+{
+    sFeebasRngValue = seed;
+}
+
+u8 ChooseWildMonIndex_Land(void)
+{
+    u8 rand = Random() % 100;
+
+    if (rand < 20)                  // 20% chance
+        return 0;
+    if (rand >= 20 && rand < 40)    // 20% chance
+        return 1;
+    if (rand >= 40 && rand < 50)    // 10% chance
+        return 2;
+    if (rand >= 50 && rand < 60)    // 10% chance
+        return 3;
+    if (rand >= 60 && rand < 70)    // 10% chance
+        return 4;
+    if (rand >= 70 && rand < 80)    // 10% chance
+        return 5;
+    if (rand >= 80 && rand < 85)    // 5% chance
+        return 6;
+    if (rand >= 85 && rand < 90)    // 5% chance
+        return 7;
+    if (rand >= 90 && rand < 94)    // 4% chance
+        return 8;
+    if (rand >= 94 && rand < 98)    // 4% chance
+        return 9;
+    if (rand == 98)                 // 1% chance
+        return 10;
+    else                            // 1% chance
+        return 11;
+}
+
+u8 ChooseWildMonIndex_WaterRock(void)
+{
+    u8 rand = Random() % 100;
+
+    if (rand < 60)                  // 60% chance
+        return 0;
+    if (rand >= 60 && rand < 90)    // 30% chance
+        return 1;
+    if (rand >= 90 && rand < 95)    // 5% chance
+        return 2;
+    if (rand >= 95 && rand < 99)    // 4% chance
+        return 3;
+    else                            // 1% chance
+        return 4;
+}
+
+enum
+{
+    OLD_ROD,
+    GOOD_ROD,
+    SUPER_ROD
+};
+
+u8 ChooseWildMonIndex_Fishing(u8 rod)
+{
+    u8 wildMonIndex = 0;
+    u8 rand = Random() % 100;
+
+    switch (rod)
+    {
+    case OLD_ROD:
+        if (rand < 70)  // 70% chance
+            wildMonIndex = 0;
+        else            // 30% chance
+            wildMonIndex = 1;
+        break;
+    case GOOD_ROD:
+        if (rand < 60)                  // 60% chance
+            wildMonIndex = 2;
+        if (rand >= 60 && rand < 80)    // 20% chance
+            wildMonIndex = 3;
+        if (rand >= 80 && rand < 100)   // 20% chance
+            wildMonIndex = 4;
+        break;
+    case SUPER_ROD:
+        if (rand < 40)                  // 40% chance
+            wildMonIndex = 5;
+        if (rand >= 40 && rand < 80)    // 40% chance
+            wildMonIndex = 6;
+        if (rand >= 80 && rand < 95)    // 15% chance
+            wildMonIndex = 7;
+        if (rand >= 95 && rand < 99)    // 4% chance
+            wildMonIndex = 8;
+        if (rand == 99)                 // 1% chance
+            wildMonIndex = 9;
+        break;
+    }
+    return wildMonIndex;
+}
+
+u8 ChooseWildMonLevel(const struct WildPokemon *wildPokemon)
+{
+    u8 min;
+    u8 max;
+    u8 range;
+    u8 rand;
+
+    // Make sure minimum level is less than maximum level
+    if (wildPokemon->maxLevel >= wildPokemon->minLevel)
+    {
+        min = wildPokemon->minLevel;
+        max = wildPokemon->maxLevel;
+    }
+    else
+    {
+        min = wildPokemon->maxLevel;
+        max = wildPokemon->minLevel;
+    }
+    range = max - min + 1;
+    rand = Random() % range;
+
+    // check ability for max level mon
+    if (!GetMonData(&gPlayerParty[0], MON_DATA_SANITY_BIT3))
+    {
+        u8 ability = GetMonAbility(&gPlayerParty[0]);
+        if (ability == ABILITY_HUSTLE || ability == ABILITY_VITAL_SPIRIT || ability == ABILITY_PRESSURE)
+        {
+            if (Random() % 2 == 0)
+                return max;
+
+            if (rand != 0)
+                rand--;
+        }
+    }
+
+    return min + rand;
+}
+
+u16 GetCurrentMapWildMonHeaderId(void)
+{
+    u16 i;
+
+    for (i = 0; ; i++)
+    {
+        const struct WildPokemonHeader *wildHeader = &gWildMonHeaders[i];
+        if (wildHeader->mapGroup == 0xFF)
+            break;
+
+        if (gWildMonHeaders[i].mapGroup == gSaveBlock1Ptr->location.mapGroup &&
+            gWildMonHeaders[i].mapNum == gSaveBlock1Ptr->location.mapNum)
+        {
+            if (gSaveBlock1Ptr->location.mapGroup == MAP_GROUP_ALTERING_CAVE &&
+                gSaveBlock1Ptr->location.mapNum == MAP_ID_ALTERING_CAVE)
+            {
+                u16 alteringCaveId = VarGet(VAR_ALTERING_CAVE_WILD_SET);
+                if (alteringCaveId > 8)
+                    alteringCaveId = 0;
+
+                i += alteringCaveId;
+            }
+
+            return i;
+        }
+    }
+
+    return -1;
+}
+
+u8 PickWildMonNature(void)
+{
+    u8 i;
+    u8 j;
+    struct Pokeblock *safariPokeblock;
+    u8 natures[25];
+
+    if (GetSafariZoneFlag() == TRUE && Random() % 100 < 80)
+    {
+        safariPokeblock = SafariZoneGetActivePokeblock();
+        if (safariPokeblock != NULL)
+        {
+            for (i = 0; i < 25; i++)
+                natures[i] = i;
+            for (i = 0; i < 24; i++)
+            {
+                for (j = i + 1; j < 25; j++)
+                {
+                    if (Random() & 1)
+                    {
+                        u8 temp = natures[i];
+
+                        natures[i] = natures[j];
+                        natures[j] = temp;
+                    }
+                }
+            }
+            for (i = 0; i < 25; i++)
+            {
+                if (PokeblockGetGain(natures[i], safariPokeblock) > 0)
+                    return natures[i];
+            }
+        }
+    }
+    // check synchronize for a pokemon with the same ability
+    if (!GetMonData(&gPlayerParty[0], MON_DATA_SANITY_BIT3)
+        && GetMonAbility(&gPlayerParty[0]) == ABILITY_SYNCHRONIZE
+        && Random() % 2 == 0)
+    {
+        return GetMonData(&gPlayerParty[0], MON_DATA_PERSONALITY) % 25;
+    }
+
+    // random nature
+    return Random() % 25;
+}
+
+void CreateWildMon(u16 species, u8 level)
+{
+    bool32 checkCuteCharm;
+
+    ZeroEnemyPartyMons();
+    checkCuteCharm = TRUE;
+
+    switch (gBaseStats[species].genderRatio)
+    {
+    case MON_MALE:
+    case MON_FEMALE:
+    case MON_GENDERLESS:
+        checkCuteCharm = FALSE;
+        break;
+    }
+
+    if (checkCuteCharm
+        && !GetMonData(&gPlayerParty[0], MON_DATA_SANITY_BIT3)
+        && GetMonAbility(&gPlayerParty[0]) == ABILITY_CUTE_CHARM
+        && Random() % 3 != 0)
+    {
+        u16 leadingMonSpecies = GetMonData(&gPlayerParty[0], MON_DATA_SPECIES);
+        u32 leadingMonPersonality = GetMonData(&gPlayerParty[0], MON_DATA_PERSONALITY);
+        u8 gender = GetGenderFromSpeciesAndPersonality(leadingMonSpecies, leadingMonPersonality);
+
+        // misses mon is genderless check, although no genderless mon can have cute charm as ability
+        if (gender == MON_FEMALE)
+            gender = MON_MALE;
+        else
+            gender = MON_FEMALE;
+
+        CreateMonWithGenderNatureLetter(&gEnemyParty[0], species, level, 32, gender, PickWildMonNature(), 0);
+        return;
+    }
+
+    CreateMonWithNature(&gEnemyParty[0], species, level, 32, PickWildMonNature());
+}
+
+enum
+{
+    WILD_AREA_LAND,
+    WILD_AREA_WATER,
+    WILD_AREA_ROCKS,
+    WILD_AREA_FISHING,
+};
+
+#define WILD_CHECK_REPEL    0x1
+#define WILD_CHECK_KEEN_EYE 0x2
+
+bool8 TryGenerateWildMon(struct WildPokemonInfo *wildMonInfo, u8 area, u8 flags)
+{
+    u8 wildMonIndex = 0;
+    u8 level;
+
+    switch (area)
+    {
+    case WILD_AREA_LAND:
+        if (TryGetAbilityInfluencedWildMonIndex(wildMonInfo->wildPokemon, TYPE_STEEL, ABILITY_MAGNET_PULL, &wildMonIndex))
+            break;
+        if (TryGetAbilityInfluencedWildMonIndex(wildMonInfo->wildPokemon, TYPE_ELECTRIC, ABILITY_STATIC, &wildMonIndex))
+            break;
+
+        wildMonIndex = ChooseWildMonIndex_Land();
+        break;
+    case WILD_AREA_WATER:
+        if (TryGetAbilityInfluencedWildMonIndex(wildMonInfo->wildPokemon, TYPE_ELECTRIC, ABILITY_STATIC, &wildMonIndex))
+            break;
+
+        wildMonIndex = ChooseWildMonIndex_WaterRock();
+        break;
+    case WILD_AREA_ROCKS:
+        wildMonIndex = ChooseWildMonIndex_WaterRock();
+        break;
+    }
+
+    level = ChooseWildMonLevel(&wildMonInfo->wildPokemon[wildMonIndex]);
+    if (flags & WILD_CHECK_REPEL && !IsWildLevelAllowedByRepel(level))
+        return FALSE;
+    if (gMapHeader.mapDataId != 0x166 && flags & WILD_CHECK_KEEN_EYE && !IsAbilityAllowingEncounter(level))
+        return FALSE;
+
+    CreateWildMon(wildMonInfo->wildPokemon[wildMonIndex].species, level);
+    return TRUE;
+}
+
+u16 GenerateFishingWildMon(struct WildPokemonInfo *wildMonInfo, u8 rod)
+{
+    u8 wildMonIndex = ChooseWildMonIndex_Fishing(rod);
+    u8 level = ChooseWildMonLevel(&wildMonInfo->wildPokemon[wildMonIndex]);
+
+    CreateWildMon(wildMonInfo->wildPokemon[wildMonIndex].species, level);
+    return wildMonInfo->wildPokemon[wildMonIndex].species;
+}
+
+bool8 SetUpMassOutbreakEncounter(u8 flags)
+{
+    u16 i;
+
+    if (flags & WILD_CHECK_REPEL && !IsWildLevelAllowedByRepel(gSaveBlock1Ptr->outbreakPokemonLevel))
+        return FALSE;
+
+    CreateWildMon(gSaveBlock1Ptr->outbreakPokemonSpecies, gSaveBlock1Ptr->outbreakPokemonLevel);
+    for (i = 0; i < 4; i++)
+        SetMonMoveSlot(&gEnemyParty[0], gSaveBlock1Ptr->outbreakPokemonMoves[i], i);
+
+    return TRUE;
+}
+
+bool8 DoMassOutbreakEncounterTest(void)
+{
+    if (gSaveBlock1Ptr->outbreakPokemonSpecies != 0
+     && gSaveBlock1Ptr->location.mapNum == gSaveBlock1Ptr->outbreakLocationMapNum
+     && gSaveBlock1Ptr->location.mapGroup == gSaveBlock1Ptr->outbreakLocationMapGroup)
+    {
+        if (Random() % 100 < gSaveBlock1Ptr->outbreakPokemonProbability)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+bool8 DoWildEncounterRateDiceRoll(u16 encounterRate)
+{
+    if (Random() % 2880 < encounterRate)
+        return TRUE;
+    else
+        return FALSE;
+}
+
+bool8 DoWildEncounterRateTest(u32 encounterRate, bool8 ignoreAbility)
+{
+    encounterRate *= 16;
+    if (TestPlayerAvatarFlags(PLAYER_AVATAR_FLAG_MACH_BIKE | PLAYER_AVATAR_FLAG_ACRO_BIKE))
+        encounterRate = encounterRate * 80 / 100;
+    ApplyFluteEncounterRateMod(&encounterRate);
+    ApplyCleanseTagEncounterRateMod(&encounterRate);
+    if (!ignoreAbility && !GetMonData(&gPlayerParty[0], MON_DATA_SANITY_BIT3))
+    {
+        u32 ability = GetMonAbility(&gPlayerParty[0]);
+
+        if (ability == ABILITY_STENCH && gMapHeader.mapDataId == 0x169)
+            encounterRate = encounterRate * 3 / 4;
+        else if (ability == ABILITY_STENCH)
+            encounterRate /= 2;
+        else if (ability == ABILITY_ILLUMINATE)
+            encounterRate *= 2;
+        else if (ability == ABILITY_WHITE_SMOKE)
+            encounterRate /= 2;
+        else if (ability == ABILITY_ARENA_TRAP)
+            encounterRate *= 2;
+        else if (ability == ABILITY_SAND_VEIL && gSaveBlock1Ptr->weather == 8)
+            encounterRate /= 2;
+    }
+    if (encounterRate > 2880)
+        encounterRate = 2880;
+    return DoWildEncounterRateDiceRoll(encounterRate);
+}
diff --git a/sym_ewram.txt b/sym_ewram.txt
index 7f835af30..b96ece7eb 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -789,11 +789,7 @@ gUnknown_02038BF9: @ 2038BF9
 gUnknown_02038BFC: @ 2038BFC
 	.space 0x4
 
-gUnknown_02038C00: @ 2038C00
-	.space 0x4
-
-gUnknown_02038C04: @ 2038C04
-	.space 0x4
+    .include "src/wild_encounter.o"
 
 gFieldEffectArguments: @ 2038C08
 	.space 0x20