diff --git a/asm/berry_blender.s b/asm/berry_blender.s
index 816ae2d82..cc859f052 100644
--- a/asm/berry_blender.s
+++ b/asm/berry_blender.s
@@ -7675,7 +7675,7 @@ sub_80838AC: @ 80838AC
 	adds r6, r1, 0
 	movs r0, 0xFF
 	strb r0, [r6]
-	ldr r1, =gUnknown_085B262C
+	ldr r1, =gPokeblockNames
 	ldrb r0, [r5]
 	lsls r0, 2
 	adds r0, r1
diff --git a/asm/field_control_avatar.s b/asm/field_control_avatar.s
index 181715261..e0345e188 100644
--- a/asm/field_control_avatar.s
+++ b/asm/field_control_avatar.s
@@ -1461,7 +1461,7 @@ _0809CAE4:
 	b _0809CB28
 	.pool
 _0809CAF8:
-	bl safari_step
+	bl SafariZoneTakeStep
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
diff --git a/asm/fldeff_80F9BCC.s b/asm/fldeff_80F9BCC.s
index b8ef7a164..7f8fdab68 100644
--- a/asm/fldeff_80F9BCC.s
+++ b/asm/fldeff_80F9BCC.s
@@ -590,7 +590,7 @@ sub_80FA004: @ 80FA004
 	cmp r0, 0x1
 	bne _080FA070
 	bl sub_80F9F5C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -605,7 +605,7 @@ _080FA070:
 	cmp r0, 0x1
 	bne _080FA0A0
 	bl sub_80F9F5C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -624,7 +624,7 @@ _080FA0AE:
 	b _080FA0C4
 _080FA0B2:
 	bl sub_80F9F5C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/fldeff_strength.s b/asm/fldeff_strength.s
index 67e4126b9..412eaff5d 100644
--- a/asm/fldeff_strength.s
+++ b/asm/fldeff_strength.s
@@ -22,7 +22,7 @@ _08145DD8:
 	lsls r0, 24
 	lsrs r0, 24
 	strh r0, [r4]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/fldeff_sweetscent.s b/asm/fldeff_sweetscent.s
index d4036acd2..a297dd41d 100644
--- a/asm/fldeff_sweetscent.s
+++ b/asm/fldeff_sweetscent.s
@@ -7,7 +7,7 @@
     
 	thumb_func_start SetUpFieldMove_SweetScent
 SetUpFieldMove_SweetScent: @ 8159EF0
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/fldeff_teleport.s b/asm/fldeff_teleport.s
index b723f1cad..f3dc3ec9b 100644
--- a/asm/fldeff_teleport.s
+++ b/asm/fldeff_teleport.s
@@ -19,7 +19,7 @@ SetUpFieldMove_Teleport: @ 817C8BC
 	b _0817C8E6
 	.pool
 _0817C8D8:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/rom4.s b/asm/rom4.s
index ab98f4b2d..8fb7ca8ad 100644
--- a/asm/rom4.s
+++ b/asm/rom4.s
@@ -3122,7 +3122,7 @@ sub_8085E94: @ 8085E94
 	thumb_func_start map_post_load_hook_exec
 map_post_load_hook_exec: @ 8085EA0
 	push {r4,lr}
-	ldr r4, =gFieldCallback
+	ldr r4, =gUnknown_03005DB0
 	ldr r0, [r4]
 	cmp r0, 0
 	beq _08085ECC
@@ -3177,7 +3177,7 @@ CB2_NewGame: @ 8085EF8
 	ldr r1, =gUnknown_03005DAC
 	ldr r0, =sub_80FB4E0
 	str r0, [r1]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	movs r0, 0
 	str r0, [r1]
 	ldr r0, =gUnknown_030026F8
@@ -3420,7 +3420,7 @@ _08086178:
 sub_8086194: @ 8086194
 	push {lr}
 	bl sub_808631C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =sub_80AF6A4
 	str r0, [r1]
 	bl c2_exit_to_overworld_2_switch
diff --git a/asm/rom6.s b/asm/rom6.s
index 242e1589d..5f604448d 100644
--- a/asm/rom6.s
+++ b/asm/rom6.s
@@ -267,7 +267,7 @@ sub_8135654: @ 8135654
 	lsls r0, 24
 	lsrs r0, 24
 	strh r0, [r4]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -284,7 +284,7 @@ _0813568C:
 	movs r0, 0
 	b _081356AC
 _0813569E:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -360,7 +360,7 @@ sub_813572C: @ 813572C
 	movs r0, 0
 	b _0813574C
 _0813573E:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -1205,7 +1205,7 @@ sub_8135F04: @ 8135F04
 	adds r1, r3
 	ldr r5, [r2]
 	adds r5, r1
-	ldr r2, =gUnknown_085B262C
+	ldr r2, =gPokeblockNames
 	ldrb r1, [r5]
 	lsls r1, 2
 	adds r1, r2
@@ -2583,7 +2583,7 @@ sub_8136AB4: @ 8136AB4
 	movs r1, 0
 	bl sub_8198070
 	ldr r0, =gStringVar1
-	ldr r3, =gUnknown_085B262C
+	ldr r3, =gPokeblockNames
 	ldr r1, =gSaveBlock1Ptr
 	ldr r2, [r1]
 	ldr r1, =gUnknown_0203CE7C
@@ -2784,7 +2784,7 @@ sub_8136C8C: @ 8136C8C
 	lsls r4, 16
 	lsrs r4, 16
 	ldr r0, =gBattleTextBuff1
-	ldr r3, =gUnknown_085B262C
+	ldr r3, =gPokeblockNames
 	ldr r2, [r5]
 	ldrh r1, [r7]
 	lsls r1, 3
@@ -2838,9 +2838,9 @@ sub_8136D2C: @ 8136D2C
 	lsrs r4, 24
 	ldr r5, =gUnknown_0203CE7C
 	ldrb r0, [r5]
-	bl sub_80FC3E8
+	bl SafariZoneActivatePokeblockFeeder
 	ldr r0, =gStringVar1
-	ldr r3, =gUnknown_085B262C
+	ldr r3, =gPokeblockNames
 	ldr r1, =gSaveBlock1Ptr
 	ldr r2, [r1]
 	ldrh r1, [r5]
@@ -3236,7 +3236,7 @@ sub_8137044: @ 8137044
 	movs r1, 0
 	bl sub_8136F9C
 	lsls r0, 24
-	ldr r1, =gUnknown_085B262C
+	ldr r1, =gPokeblockNames
 	lsrs r0, 22
 	adds r0, r1
 	ldr r1, [r0]
@@ -3255,7 +3255,7 @@ sub_8137068: @ 8137068
 	lsls r0, 24
 	lsrs r5, r0, 24
 	movs r4, 0
-	ldr r7, =gUnknown_085B262C
+	ldr r7, =gPokeblockNames
 _08137074:
 	lsls r1, r4, 3
 	ldr r0, =gUnknown_085B2720
@@ -3338,7 +3338,7 @@ sub_81370FC: @ 81370FC
 	lsls r0, 24
 	lsrs r0, 24
 	strh r0, [r4]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -3355,7 +3355,7 @@ _08137134:
 	lsls r0, 24
 	cmp r0, 0
 	bne _08137170
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/rom_80C6FA0.s b/asm/rom_80C6FA0.s
index 163694549..c58388b92 100644
--- a/asm/rom_80C6FA0.s
+++ b/asm/rom_80C6FA0.s
@@ -24078,7 +24078,7 @@ sub_80D3718: @ 80D3718
 	lsrs r0, 24
 	cmp r0, 0x1
 	bne _080D3754
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -24380,7 +24380,7 @@ _080D395A:
 	cmp r0, 0x1
 	bne _080D39F8
 _080D39BC:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -24418,7 +24418,7 @@ _080D3A18:
 	cmp r2, 0x1
 	bne _080D3A2A
 _080D3A1E:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
diff --git a/asm/rom_818E9AC.s b/asm/rom_818E9AC.s
index e785eebde..89694f630 100644
--- a/asm/rom_818E9AC.s
+++ b/asm/rom_818E9AC.s
@@ -74275,7 +74275,7 @@ _081B5714:
 	movs r0, 0x5
 	bl PlaySE
 _081B571A:
-	ldr r0, =gFieldCallback
+	ldr r0, =gUnknown_03005DB0
 	movs r1, 0
 	str r1, [r0]
 	ldr r0, =gUnknown_0203CEEC
@@ -74421,7 +74421,7 @@ sub_81B5820: @ 81B5820
 	lsrs r0, 24
 	cmp r0, 0x1
 	bne _081B585C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -74539,7 +74539,7 @@ hm_prepare_waterfall: @ 81B58F0
 	lsrs r0, 24
 	cmp r0, 0x1
 	bne _081B594C
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -74586,7 +74586,7 @@ sub_81B5974: @ 81B5974
 	b _081B599E
 	.pool
 _081B5990:
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_launch_phase_2
 	str r0, [r1]
 	ldr r1, =gUnknown_0203CEEC
@@ -81352,7 +81352,7 @@ sub_81B9354: @ 81B9354
 	sub sp, 0xC
 	lsls r0, 24
 	lsrs r0, 24
-	ldr r2, =gFieldCallback
+	ldr r2, =gUnknown_03005DB0
 	ldr r1, =hm_add_c3_without_phase_2
 	str r1, [r2]
 	movs r1, 0
@@ -81384,7 +81384,7 @@ sub_81B9390: @ 81B9390
 	movs r0, 0xFF
 	strh r0, [r4]
 _081B93A6:
-	ldr r0, =gFieldCallback
+	ldr r0, =gUnknown_03005DB0
 	ldr r1, =hm_add_c3_without_phase_2
 	str r1, [r0]
 	ldr r0, =c2_exit_to_overworld_2_switch
@@ -81493,7 +81493,7 @@ _081B9486:
 	ldr r1, =gSpecialVar_0x8004
 	ldrb r0, [r2]
 	strh r0, [r1]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =hm_add_c3_without_phase_2
 	str r0, [r1]
 	ldr r0, =c2_exit_to_overworld_2_switch
@@ -81629,7 +81629,7 @@ _081B95A4:
 	lsrs r0, 24
 	strh r0, [r4]
 _081B95BA:
-	ldr r0, =gFieldCallback
+	ldr r0, =gUnknown_03005DB0
 	ldr r1, =hm_add_c3_without_phase_2
 	str r1, [r0]
 	ldr r0, =c2_exit_to_overworld_2_switch
diff --git a/asm/rom_81BE66C.s b/asm/rom_81BE66C.s
index bc723ee27..d7a5aac86 100644
--- a/asm/rom_81BE66C.s
+++ b/asm/rom_81BE66C.s
@@ -12059,7 +12059,7 @@ sub_81C4F44: @ 81C4F44
 	cmp r0, 0
 	bne _081C4F6E
 	bl overworld_free_bg_tilemaps
-	ldr r0, =gFieldCallback
+	ldr r0, =gUnknown_03005DB0
 	ldr r1, =hm_add_c3_without_phase_2
 	str r1, [r0]
 	ldr r1, =c2_exit_to_overworld_2_switch
diff --git a/asm/safari_zone.s b/asm/safari_zone.s
deleted file mode 100644
index 03c8e3613..000000000
--- a/asm/safari_zone.s
+++ /dev/null
@@ -1,524 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start GetSafariZoneFlag
-GetSafariZoneFlag: @ 80FC0A0
-	push {lr}
-	ldr r0, =0x0000088c
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end GetSafariZoneFlag
-
-	thumb_func_start SetSafariZoneFlag
-SetSafariZoneFlag: @ 80FC0B4
-	push {lr}
-	ldr r0, =0x0000088c
-	bl FlagSet
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end SetSafariZoneFlag
-
-	thumb_func_start ResetSafariZoneFlag
-ResetSafariZoneFlag: @ 80FC0C4
-	push {lr}
-	ldr r0, =0x0000088c
-	bl FlagReset
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end ResetSafariZoneFlag
-
-	thumb_func_start sub_80FC0D4
-sub_80FC0D4: @ 80FC0D4
-	push {lr}
-	movs r0, 0x11
-	bl IncrementGameStat
-	bl SetSafariZoneFlag
-	bl sub_80FC244
-	ldr r1, =gNumSafariBalls
-	movs r0, 0x1E
-	strb r0, [r1]
-	ldr r1, =gUnknown_0203A04E
-	movs r2, 0xFA
-	lsls r2, 1
-	adds r0, r2, 0
-	strh r0, [r1]
-	ldr r0, =gUnknown_0203A050
-	movs r1, 0
-	strb r1, [r0]
-	ldr r0, =gUnknown_0203A051
-	strb r1, [r0]
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC0D4
-
-	thumb_func_start sub_80FC114
-sub_80FC114: @ 80FC114
-	push {lr}
-	ldr r0, =gUnknown_0203A050
-	ldrb r0, [r0]
-	ldr r1, =gUnknown_0203A051
-	ldrb r1, [r1]
-	bl sub_80EE44C
-	bl ResetSafariZoneFlag
-	bl sub_80FC244
-	ldr r1, =gNumSafariBalls
-	movs r0, 0
-	strb r0, [r1]
-	ldr r1, =gUnknown_0203A04E
-	movs r0, 0
-	strh r0, [r1]
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC114
-
-	thumb_func_start safari_step
-safari_step: @ 80FC14C
-	push {lr}
-	bl GetSafariZoneFlag
-	cmp r0, 0
-	beq _080FC168
-	bl sub_80FC480
-	ldr r1, =gUnknown_0203A04E
-	ldrh r0, [r1]
-	subs r0, 0x1
-	strh r0, [r1]
-	lsls r0, 16
-	cmp r0, 0
-	beq _080FC170
-_080FC168:
-	movs r0, 0
-	b _080FC178
-	.pool
-_080FC170:
-	ldr r0, =gUnknown_082A4B8A
-	bl ScriptContext1_SetupScript
-	movs r0, 0x1
-_080FC178:
-	pop {r1}
-	bx r1
-	.pool
-	thumb_func_end safari_step
-
-	thumb_func_start sub_80FC180
-sub_80FC180: @ 80FC180
-	push {lr}
-	ldr r0, =gUnknown_082A4B6F
-	bl ScriptContext1_SetupScript
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC180
-
-	thumb_func_start sub_80FC190
-sub_80FC190: @ 80FC190
-	push {lr}
-	ldr r1, =gUnknown_0203A051
-	ldr r0, =gBattleResults
-	ldrb r0, [r0, 0x1F]
-	ldrb r2, [r1]
-	adds r0, r2
-	strb r0, [r1]
-	ldr r2, =gBattleOutcome
-	ldrb r0, [r2]
-	cmp r0, 0x7
-	bne _080FC1AE
-	ldr r1, =gUnknown_0203A050
-	ldrb r0, [r1]
-	adds r0, 0x1
-	strb r0, [r1]
-_080FC1AE:
-	ldr r0, =gNumSafariBalls
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _080FC1D8
-	ldr r0, =c2_exit_to_overworld_2_switch
-	bl SetMainCallback2
-	b _080FC21C
-	.pool
-_080FC1D8:
-	ldrb r0, [r2]
-	cmp r0, 0x8
-	bne _080FC208
-	ldr r0, =gUnknown_082A4B4C
-	bl ScriptContext2_RunNewScript
-	bl warp_in
-	ldr r1, =gUnknown_03005DAC
-	ldr r0, =sub_80AF6F0
-	str r0, [r1]
-	ldr r0, =c2_load_new_map
-	bl SetMainCallback2
-	b _080FC21C
-	.pool
-_080FC208:
-	cmp r0, 0x7
-	bne _080FC21C
-	ldr r0, =gUnknown_082A4B9B
-	bl ScriptContext1_SetupScript
-	bl script_env_2_set_ctx_paused
-	ldr r0, =c2_exit_to_overworld_1_continue_scripts_restart_music
-	bl SetMainCallback2
-_080FC21C:
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC190
-
-	thumb_func_start sub_80FC228
-sub_80FC228: @ 80FC228
-	push {lr}
-	lsls r0, 24
-	lsrs r0, 20
-	ldr r1, =gUnknown_0203A054
-	adds r0, r1
-	movs r1, 0
-	movs r2, 0x10
-	bl memset
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC228
-
-	thumb_func_start sub_80FC244
-sub_80FC244: @ 80FC244
-	push {lr}
-	ldr r0, =gUnknown_0203A054
-	movs r1, 0
-	movs r2, 0xA0
-	bl memset
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC244
-
-	thumb_func_start sub_80FC258
-sub_80FC258: @ 80FC258
-	push {r4,r5,lr}
-	sub sp, 0x4
-	mov r4, sp
-	adds r4, 0x2
-	mov r0, sp
-	adds r1, r4, 0
-	bl GetXYCoordsOneStepInFrontOfPlayer
-	movs r5, 0
-_080FC26A:
-	ldr r0, =gSaveBlock1Ptr
-	ldr r2, [r0]
-	ldr r1, =gUnknown_0203A054
-	lsls r0, r5, 4
-	adds r3, r0, r1
-	movs r1, 0x5
-	ldrsb r1, [r2, r1]
-	movs r0, 0x4
-	ldrsb r0, [r3, r0]
-	cmp r1, r0
-	bne _080FC2C4
-	mov r0, sp
-	movs r2, 0
-	ldrsh r1, [r3, r2]
-	movs r2, 0
-	ldrsh r0, [r0, r2]
-	cmp r1, r0
-	bne _080FC2C4
-	movs r0, 0x2
-	ldrsh r1, [r3, r0]
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	cmp r1, r0
-	bne _080FC2C4
-	ldr r0, =gScriptResult
-	strh r5, [r0]
-	ldr r1, =gUnknown_085B262C
-	ldrb r0, [r3, 0x8]
-	lsls r0, 2
-	adds r0, r1
-	ldr r1, [r0]
-	ldr r0, =gStringVar1
-	bl StringCopy
-	b _080FC2D6
-	.pool
-_080FC2C4:
-	adds r0, r5, 0x1
-	lsls r0, 16
-	lsrs r5, r0, 16
-	cmp r5, 0x9
-	bls _080FC26A
-	ldr r1, =gScriptResult
-	ldr r2, =0x0000ffff
-	adds r0, r2, 0
-	strh r0, [r1]
-_080FC2D6:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC258
-
-	thumb_func_start sub_80FC2E8
-sub_80FC2E8: @ 80FC2E8
-	push {r4-r7,lr}
-	sub sp, 0x4
-	mov r4, sp
-	adds r4, 0x2
-	mov r0, sp
-	adds r1, r4, 0
-	bl PlayerGetDestCoords
-	movs r5, 0
-	adds r6, r4, 0
-	ldr r0, =gSaveBlock1Ptr
-	ldr r7, [r0]
-	mov r4, sp
-	ldr r0, =gUnknown_0203A054
-	mov r12, r0
-_080FC306:
-	lsls r0, r5, 4
-	mov r1, r12
-	adds r3, r0, r1
-	movs r1, 0x5
-	ldrsb r1, [r7, r1]
-	movs r0, 0x4
-	ldrsb r0, [r3, r0]
-	cmp r1, r0
-	bne _080FC364
-	ldrh r0, [r4]
-	ldrh r1, [r3]
-	subs r0, r1
-	strh r0, [r4]
-	adds r2, r6, 0
-	ldrh r0, [r2]
-	ldrh r1, [r3, 0x2]
-	subs r0, r1
-	strh r0, [r2]
-	movs r1, 0
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	bge _080FC336
-	negs r0, r0
-	strh r0, [r4]
-_080FC336:
-	movs r1, 0
-	ldrsh r0, [r2, r1]
-	cmp r0, 0
-	bge _080FC342
-	negs r0, r0
-	strh r0, [r2]
-_080FC342:
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	movs r2, 0
-	ldrsh r1, [r6, r2]
-	adds r0, r1
-	cmp r0, 0x5
-	bgt _080FC364
-	ldr r0, =gScriptResult
-	strh r5, [r0]
-	b _080FC376
-	.pool
-_080FC364:
-	adds r0, r5, 0x1
-	lsls r0, 16
-	lsrs r5, r0, 16
-	cmp r5, 0x9
-	bls _080FC306
-	ldr r1, =gScriptResult
-	ldr r2, =0x0000ffff
-	adds r0, r2, 0
-	strh r0, [r1]
-_080FC376:
-	add sp, 0x4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC2E8
-
-	thumb_func_start sub_80FC388
-sub_80FC388: @ 80FC388
-	push {lr}
-	bl sub_80FC258
-	ldr r2, =gScriptResult
-	ldrh r1, [r2]
-	ldr r0, =0x0000ffff
-	cmp r1, r0
-	beq _080FC3B0
-	adds r0, r1, 0
-	lsls r0, 4
-	ldr r1, =gUnknown_0203A05C
-	adds r0, r1
-	b _080FC3B2
-	.pool
-_080FC3B0:
-	movs r0, 0
-_080FC3B2:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FC388
-
-	thumb_func_start sub_80FC3B8
-sub_80FC3B8: @ 80FC3B8
-	push {lr}
-	bl sub_80FC2E8
-	ldr r2, =gScriptResult
-	ldrh r1, [r2]
-	ldr r0, =0x0000ffff
-	cmp r1, r0
-	beq _080FC3E0
-	adds r0, r1, 0
-	lsls r0, 4
-	ldr r1, =gUnknown_0203A05C
-	adds r0, r1
-	b _080FC3E2
-	.pool
-_080FC3E0:
-	movs r0, 0
-_080FC3E2:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FC3B8
-
-	thumb_func_start sub_80FC3E8
-sub_80FC3E8: @ 80FC3E8
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r0, 24
-	mov r8, r0
-	movs r1, 0
-	ldr r2, =gUnknown_0203A054
-	mov r6, sp
-	adds r6, 0x2
-	movs r0, 0x8
-	adds r0, r2
-	mov r9, r0
-	ldr r7, =gSaveBlock1Ptr
-_080FC408:
-	lsls r5, r1, 4
-	adds r4, r5, r2
-	movs r0, 0x4
-	ldrsb r0, [r4, r0]
-	cmp r0, 0
-	bne _080FC468
-	movs r3, 0
-	ldrsh r0, [r4, r3]
-	cmp r0, 0
-	bne _080FC468
-	movs r3, 0x2
-	ldrsh r0, [r4, r3]
-	cmp r0, 0
-	bne _080FC468
-	mov r0, sp
-	adds r1, r6, 0
-	bl GetXYCoordsOneStepInFrontOfPlayer
-	ldr r0, [r7]
-	ldrb r0, [r0, 0x5]
-	strb r0, [r4, 0x4]
-	mov r0, r9
-	adds r2, r5, r0
-	ldr r0, [r7]
-	mov r3, r8
-	lsls r1, r3, 3
-	ldr r3, =0x00000848
-	adds r0, r3
-	adds r0, r1
-	ldr r1, [r0, 0x4]
-	ldr r0, [r0]
-	str r0, [r2]
-	str r1, [r2, 0x4]
-	movs r0, 0x64
-	strb r0, [r4, 0x5]
-	mov r0, sp
-	ldrh r0, [r0]
-	strh r0, [r4]
-	ldrh r0, [r6]
-	strh r0, [r4, 0x2]
-	b _080FC472
-	.pool
-_080FC468:
-	adds r0, r1, 0x1
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x9
-	bls _080FC408
-_080FC472:
-	add sp, 0x4
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80FC3E8
-
-	thumb_func_start sub_80FC480
-sub_80FC480: @ 80FC480
-	push {r4,r5,lr}
-	movs r4, 0
-	ldr r5, =gUnknown_0203A054
-_080FC486:
-	lsls r0, r4, 4
-	adds r1, r0, r5
-	ldrb r0, [r1, 0x5]
-	cmp r0, 0
-	beq _080FC4A0
-	subs r0, 0x1
-	strb r0, [r1, 0x5]
-	lsls r0, 24
-	cmp r0, 0
-	bne _080FC4A0
-	adds r0, r4, 0
-	bl sub_80FC228
-_080FC4A0:
-	adds r0, r4, 0x1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x9
-	bls _080FC486
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_80FC480
-
-	thumb_func_start sub_80FC4B4
-sub_80FC4B4: @ 80FC4B4
-	push {lr}
-	bl sub_80FC258
-	ldr r3, =gScriptResult
-	ldrh r1, [r3]
-	ldr r0, =0x0000ffff
-	cmp r1, r0
-	beq _080FC4EC
-	ldr r0, =gStringVar2
-	ldr r2, =gUnknown_0203A054
-	lsls r1, 4
-	adds r1, r2
-	ldrb r1, [r1, 0x5]
-	movs r2, 0x2
-	movs r3, 0x3
-	bl ConvertIntToDecimalStringN
-	movs r0, 0x1
-	b _080FC4EE
-	.pool
-_080FC4EC:
-	movs r0, 0
-_080FC4EE:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80FC4B4
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/asm/start_menu.s b/asm/start_menu.s
index c96a471fa..44d477050 100644
--- a/asm/start_menu.s
+++ b/asm/start_menu.s
@@ -294,7 +294,7 @@ sub_809FA18: @ 809FA18
 	movs r0, 0
 	strb r0, [r1]
 	strb r0, [r1, 0x1]
-	ldr r1, =gFieldCallback
+	ldr r1, =gUnknown_03005DB0
 	ldr r0, =sub_809FA00
 	str r0, [r1]
 	bx lr
@@ -680,7 +680,7 @@ StartMenu_SafariZoneRetire: @ 809FD74
 	push {lr}
 	bl RemoveExtraStartMenuWindows
 	bl sub_80A0934
-	bl sub_80FC180
+	bl SafariZoneRetirePrompt
 	movs r0, 0x1
 	pop {r1}
 	bx r1
diff --git a/asm/wild_encounter.s b/asm/wild_encounter.s
index 3c7b7ba5a..2c628a5e4 100644
--- a/asm/wild_encounter.s
+++ b/asm/wild_encounter.s
@@ -670,7 +670,7 @@ sub_80B4D78: @ 80B4D78
 	lsrs r0, 16
 	cmp r0, 0x4F
 	bhi _080B4E0E
-	bl sub_80FC3B8
+	bl SafariZoneGetActivePokeblock
 	adds r7, r0, 0
 	cmp r7, 0
 	beq _080B4E0E
diff --git a/data/data4.s b/data/data4.s
index 685badd5d..202b1ffe7 100644
--- a/data/data4.s
+++ b/data/data4.s
@@ -116,7 +116,7 @@ gPokeblockFlavorCompatibilityTable:: @ 85B25A0
 gUnknown_085B2620:: @ 85B2620
 	.incbin "baserom.gba", 0x5b2620, 0xc
 
-gUnknown_085B262C:: @ 85B262C
+gPokeblockNames:: @ 85B262C
 	.incbin "baserom.gba", 0x5b262c, 0x3c
 
 gUnknown_085B2668:: @ 85B2668
diff --git a/include/battle.h b/include/battle.h
index 585f42b32..1db546de3 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -34,6 +34,15 @@
 
 #define BATTLE_TYPE_FRONTIER        (BATTLE_TYPE_BATTLE_TOWER | BATTLE_TYPE_DOME | BATTLE_TYPE_PALACE | BATTLE_TYPE_ARENA | BATTLE_TYPE_FACTORY | BATTLE_TYPE_x100000 | BATTLE_TYPE_PYRAMID)
 
+#define BATTLE_WON                  0x1
+#define BATTLE_LOST                 0x2
+#define BATTLE_DREW                 0x3
+#define BATTLE_RAN                  0x4
+#define BATTLE_PLAYER_TELEPORTED    0x5
+#define BATTLE_POKE_FLED            0x6
+#define BATTLE_CAUGHT               0x7
+#define BATTLE_OPPONENT_TELEPORTED  0xA
+
 #define STATUS_SLEEP            0x7
 #define STATUS_POISON           0x8
 #define STATUS_BURN             0x10
@@ -299,7 +308,8 @@ struct BattleResults
     u8 unk12;
     u8 battleTurnCounter;     // 0x13
     u8 pokeString2[10];       // 0x14
-    u8 filler1E[2];
+    u8 field_1E;              // 0x1E
+    u8 field_1F;              // 0x1F
     u16 lastOpponentSpecies;  // 0x20
     u16 lastUsedMove;         // 0x22
     u16 opponentMove;         // 0x24
diff --git a/include/safari_zone.h b/include/safari_zone.h
index 0649bab6a..9a81894b8 100644
--- a/include/safari_zone.h
+++ b/include/safari_zone.h
@@ -13,7 +13,6 @@ void ExitSafariMode(void);
 bool8 SafariZoneTakeStep(void);
 void SafariZoneRetirePrompt(void);
 
-void SafariZoneGetPokeblockNameInFeeder(void);
 struct Pokeblock *SafariZoneGetActivePokeblock(void);
 void SafariZoneActivatePokeblockFeeder(u8 pokeblock_index);
 
diff --git a/ld_script.txt b/ld_script.txt
index eae182d93..d4af583ba 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -152,7 +152,7 @@ SECTIONS {
         asm/truck_scene.o(.text);
         asm/porthole.o(.text);
         asm/rotating_gate.o(.text);
-        asm/safari_zone.o(.text);
+        src/safari_zone.o(.text);
         asm/contest_link_80FC4F4.o(.text);
         asm/item_use.o(.text);
         asm/battle_anim_80FE840.o(.text);
diff --git a/src/safari_zone.c b/src/safari_zone.c
new file mode 100644
index 000000000..37ee664cd
--- /dev/null
+++ b/src/safari_zone.c
@@ -0,0 +1,268 @@
+#include "global.h"
+#include "safari_zone.h"
+#include "event_data.h"
+#include "game_stat.h"
+#include "main.h"
+#include "battle.h"
+#include "string_util.h"
+
+struct PokeblockFeeder
+{
+    /*0x00*/ s16 x;
+    /*0x02*/ s16 y;
+    /*0x04*/ s8 mapNum;
+    /*0x05*/ u8 stepCounter;
+    /*0x08*/ struct Pokeblock pokeblock;
+};
+
+#define NUM_POKEBLOCK_FEEDERS 10
+
+extern u8 gBattleOutcome;
+extern void* gUnknown_03005DAC;
+
+extern u8 gUnknown_082A4B8A[];
+extern u8 gUnknown_082A4B6F[];
+extern u8 gUnknown_082A4B4C[];
+extern u8 gUnknown_082A4B9B[];
+extern const u8* const gPokeblockNames[];
+
+extern void sub_80EE44C(u8, u8);
+extern void IncrementGameStat(u8 index);
+extern void ScriptContext1_SetupScript(u8*);
+extern void ScriptContext2_RunNewScript(u8*);
+extern void c2_exit_to_overworld_2_switch(void);
+extern void c2_exit_to_overworld_1_continue_scripts_restart_music(void);
+extern void c2_load_new_map(void);
+extern void sub_80AF6F0(void);
+extern void script_env_2_set_ctx_paused(void);
+extern void warp_in(void);
+extern void GetXYCoordsOneStepInFrontOfPlayer(s16* x, s16* y);
+extern void PlayerGetDestCoords(s16* x, s16* y);
+
+EWRAM_DATA u8 gNumSafariBalls = 0;
+EWRAM_DATA static u16 sSafariZoneStepCounter = 0;
+EWRAM_DATA static u8 sSafariZoneCaughtMons = 0;
+EWRAM_DATA static u8 sSafariZoneFleedMons = 0;
+EWRAM_DATA static struct PokeblockFeeder sPokeblockFeeders[NUM_POKEBLOCK_FEEDERS] = {0};
+
+static void ClearAllPokeblockFeeders(void);
+static void DecrementFeederStepCounters(void);
+
+bool32 GetSafariZoneFlag(void)
+{
+    return FlagGet(SYS_SAFARI_MODE);
+}
+
+void SetSafariZoneFlag(void)
+{
+    FlagSet(SYS_SAFARI_MODE);
+}
+
+void ResetSafariZoneFlag(void)
+{
+    FlagReset(SYS_SAFARI_MODE);
+}
+
+void EnterSafariMode(void)
+{
+    IncrementGameStat(GAME_STAT_ENTERED_SAFARI_ZONE);
+    SetSafariZoneFlag();
+    ClearAllPokeblockFeeders();
+    gNumSafariBalls = 30;
+    sSafariZoneStepCounter = 500;
+    sSafariZoneCaughtMons = 0;
+    sSafariZoneFleedMons = 0;
+}
+
+void ExitSafariMode(void)
+{
+    sub_80EE44C(sSafariZoneCaughtMons, sSafariZoneFleedMons);
+    ResetSafariZoneFlag();
+    ClearAllPokeblockFeeders();
+    gNumSafariBalls = 0;
+    sSafariZoneStepCounter = 0;
+}
+
+bool8 SafariZoneTakeStep(void)
+{
+    if (GetSafariZoneFlag() == FALSE)
+    {
+        return FALSE;
+    }
+
+    DecrementFeederStepCounters();
+    sSafariZoneStepCounter--;
+    if (sSafariZoneStepCounter == 0)
+    {
+        ScriptContext1_SetupScript(gUnknown_082A4B8A);
+        return TRUE;
+    }
+    return FALSE;
+}
+
+void SafariZoneRetirePrompt(void)
+{
+    ScriptContext1_SetupScript(gUnknown_082A4B6F);
+}
+
+void sub_80FC190(void)
+{
+    sSafariZoneFleedMons += gBattleResults.field_1F;
+    if (gBattleOutcome == BATTLE_CAUGHT)
+        sSafariZoneCaughtMons++;
+    if (gNumSafariBalls != 0)
+    {
+        SetMainCallback2(c2_exit_to_overworld_2_switch);
+    }
+    else if (gBattleOutcome == 8)
+    {
+        ScriptContext2_RunNewScript(gUnknown_082A4B4C);
+        warp_in();
+        gUnknown_03005DAC = sub_80AF6F0;
+        SetMainCallback2(c2_load_new_map);
+    }
+    else if (gBattleOutcome == BATTLE_CAUGHT)
+    {
+        ScriptContext1_SetupScript(gUnknown_082A4B9B);
+        script_env_2_set_ctx_paused();
+        SetMainCallback2(c2_exit_to_overworld_1_continue_scripts_restart_music);
+    }
+}
+
+static void ClearPokeblockFeeder(u8 index)
+{
+    memset(&sPokeblockFeeders[index], 0, sizeof(struct PokeblockFeeder));
+}
+
+static void ClearAllPokeblockFeeders(void)
+{
+    memset(sPokeblockFeeders, 0, sizeof(sPokeblockFeeders));
+}
+
+static void GetPokeblockFeederInFront(void)
+{
+    s16 x, y;
+    u16 i;
+
+    GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+
+    for (i = 0; i < NUM_POKEBLOCK_FEEDERS; i++)
+    {
+        if (gSaveBlock1Ptr->location.mapNum == sPokeblockFeeders[i].mapNum
+         && sPokeblockFeeders[i].x == x
+         && sPokeblockFeeders[i].y == y)
+        {
+            gScriptResult = i;
+            StringCopy(gStringVar1, gPokeblockNames[sPokeblockFeeders[i].pokeblock.color]);
+            return;
+        }
+    }
+
+    gScriptResult = -1;
+}
+
+void GetPokeblockFeederWithinRange(void)
+{
+    s16 x, y;
+    u16 i;
+
+    PlayerGetDestCoords(&x, &y);
+
+    for (i = 0; i < NUM_POKEBLOCK_FEEDERS; i++)
+    {
+        if (gSaveBlock1Ptr->location.mapNum == sPokeblockFeeders[i].mapNum)
+        {
+            //Get absolute value of x and y distance from Pokeblock feeder on current map
+            x -= sPokeblockFeeders[i].x;
+            y -= sPokeblockFeeders[i].y;
+            if (x < 0)
+                x *= -1;
+            if (y < 0)
+                y *= -1;
+            if ((x + y) <= 5)
+            {
+                gScriptResult = i;
+                return;
+            }
+        }
+    }
+
+    gScriptResult = -1;
+}
+
+// unused
+struct Pokeblock *SafariZoneGetPokeblockInFront(void)
+{
+    GetPokeblockFeederInFront();
+
+    if (gScriptResult == 0xFFFF)
+        return NULL;
+    else
+        return &sPokeblockFeeders[gScriptResult].pokeblock;
+}
+
+struct Pokeblock *SafariZoneGetActivePokeblock(void)
+{
+    GetPokeblockFeederWithinRange();
+
+    if (gScriptResult == 0xFFFF)
+        return NULL;
+    else
+        return &sPokeblockFeeders[gScriptResult].pokeblock;
+}
+
+void SafariZoneActivatePokeblockFeeder(u8 pkblId)
+{
+    s16 x, y;
+    u8 i;
+
+    for (i = 0; i < NUM_POKEBLOCK_FEEDERS; i++)
+    {
+        // Find free entry in sPokeblockFeeders
+        if (sPokeblockFeeders[i].mapNum == 0
+         && sPokeblockFeeders[i].x == 0
+         && sPokeblockFeeders[i].y == 0)
+        {
+            // Initialize Pokeblock feeder
+            GetXYCoordsOneStepInFrontOfPlayer(&x, &y);
+            sPokeblockFeeders[i].mapNum = gSaveBlock1Ptr->location.mapNum;
+            sPokeblockFeeders[i].pokeblock = gSaveBlock1Ptr->pokeblocks[pkblId];
+            sPokeblockFeeders[i].stepCounter = 100;
+            sPokeblockFeeders[i].x = x;
+            sPokeblockFeeders[i].y = y;
+            break;
+        }
+    }
+}
+
+static void DecrementFeederStepCounters(void)
+{
+    u8 i;
+
+    for (i = 0; i < NUM_POKEBLOCK_FEEDERS; i++)
+    {
+        if (sPokeblockFeeders[i].stepCounter != 0)
+        {
+            sPokeblockFeeders[i].stepCounter--;
+            if (sPokeblockFeeders[i].stepCounter == 0)
+                ClearPokeblockFeeder(i);
+        }
+    }
+}
+
+// unused
+bool8 GetInFrontFeederPokeblockAndSteps(void)
+{
+    GetPokeblockFeederInFront();
+
+    if (gScriptResult == 0xFFFF)
+    {
+        return FALSE;
+    }
+
+    ConvertIntToDecimalStringN(gStringVar2,
+        sPokeblockFeeders[gScriptResult].stepCounter,
+        STR_CONV_MODE_LEADING_ZEROS, 3);
+
+    return TRUE;
+}
diff --git a/sym_common.txt b/sym_common.txt
index 24176cc61..0bca24003 100644
--- a/sym_common.txt
+++ b/sym_common.txt
@@ -272,7 +272,7 @@ gUnknown_03005DA8: @ 3005DA8
 gUnknown_03005DAC: @ 3005DAC
 	.space 0x4
 
-gFieldCallback: @ 3005DB0
+gUnknown_03005DB0: @ 3005DB0
 	.space 0x4
 
 gUnknown_03005DB4: @ 3005DB4
diff --git a/sym_ewram.txt b/sym_ewram.txt
index b1f2a8eaf..dda072481 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -1205,23 +1205,7 @@ gUnknown_0203A044: @ 203A044
 gUnknown_0203A048: @ 203A048
 	.space 0x4
 
-gNumSafariBalls: @ 203A04C
-	.space 0x2
-
-gUnknown_0203A04E: @ 203A04E
-	.space 0x2
-
-gUnknown_0203A050: @ 203A050
-	.space 0x1
-
-gUnknown_0203A051: @ 203A051
-	.space 0x3
-
-gUnknown_0203A054: @ 203A054
-	.space 0x8
-
-gUnknown_0203A05C: @ 203A05C
-	.space 0x98
+    .include "src/safari_zone.o"
 
 gUnknown_0203A0F4: @ 203A0F4
 	.space 0x4