diff --git a/Makefile b/Makefile
index 7868a6e1e..1cb59fece 100644
--- a/Makefile
+++ b/Makefile
@@ -51,7 +51,7 @@ ROM := pokeemerald.gba
 OBJ_DIR := build/emerald
 LIBPATH := -L ../../tools/agbcc/lib
 else
-CC1             := $(shell $(PREFIX)gcc --print-prog-name=cc1) -quiet
+CC1             := $(shell $(CC) --print-prog-name=cc1) -quiet
 override CFLAGS += -mthumb -mthumb-interwork -O2 -mabi=apcs-gnu -mtune=arm7tdmi -march=armv4t -fno-toplevel-reorder -fno-aggressive-loop-optimizations -Wno-pointer-to-int-cast
 ROM := pokeemerald_modern.gba
 OBJ_DIR := build/modern
@@ -78,6 +78,12 @@ FIX := tools/gbafix/gbafix$(EXE)
 MAPJSON := tools/mapjson/mapjson$(EXE)
 JSONPROC := tools/jsonproc/jsonproc$(EXE)
 
+TOOLDIRS := $(filter-out tools/agbcc tools/binutils,$(wildcard tools/*))
+TOOLBASE = $(TOOLDIRS:tools/%=%)
+TOOLS = $(foreach tool,$(TOOLBASE),tools/$(tool)/$(tool)$(EXE))
+
+MAKEFLAGS += --no-print-directory
+
 # Clear the default suffixes
 .SUFFIXES:
 # Don't delete intermediate files
@@ -88,7 +94,17 @@ JSONPROC := tools/jsonproc/jsonproc$(EXE)
 # Secondary expansion is required for dependency variables in object rules.
 .SECONDEXPANSION:
 
-.PHONY: rom clean compare tidy tools mostlyclean clean-tools
+.PHONY: all rom clean compare tidy tools mostlyclean clean-tools $(TOOLDIRS)
+
+infoshell = $(foreach line, $(shell $1 | sed "s/ /__SPACE__/g"), $(info $(subst __SPACE__, ,$(line))))
+
+# Build tools when building the rom
+# Disable dependency scanning for clean/tidy/tools
+ifeq (,$(filter-out all compare,$(MAKECMDGOALS)))
+$(call infoshell, $(MAKE) tools)
+else
+NODEP := 1
+endif
 
 C_SRCS := $(wildcard $(C_SUBDIR)/*.c $(C_SUBDIR)/*/*.c $(C_SUBDIR)/*/*/*.c)
 C_OBJS := $(patsubst $(C_SUBDIR)/%.c,$(C_BUILDDIR)/%.o,$(C_SRCS))
@@ -112,18 +128,14 @@ SUBDIRS  := $(sort $(dir $(OBJS)))
 
 AUTO_GEN_TARGETS :=
 
-TOOLDIRS := $(filter-out tools/agbcc tools/binutils,$(wildcard tools/*))
-TOOLBASE = $(TOOLDIRS:tools/%=%)
-TOOLS = $(foreach tool,$(TOOLBASE),tools/%(tool)/$(tool)$(EXE))
-
 $(shell mkdir -p $(SUBDIRS))
 
-all: tools rom
+all: rom
 
-tools: $(TOOLS)
+tools: $(TOOLDIRS)
 
-$(TOOLS):
-	@$(foreach tooldir,$(TOOLDIRS),$(MAKE) -C $(tooldir);)
+$(TOOLDIRS):
+	@$(MAKE) -C $@
 
 rom: $(ROM)
 
diff --git a/src/bg.c b/src/bg.c
index 43570f5eb..1678f4023 100644
--- a/src/bg.c
+++ b/src/bg.c
@@ -220,7 +220,7 @@ static void ShowBgInternal(u8 bg)
                 (sGpuBgConfigs.configs[bg].wraparound << 13) |
                 (sGpuBgConfigs.configs[bg].screenSize << 14);
 
-        SetGpuReg((bg << 1) + 0x8, value);
+        SetGpuReg((bg << 1) + REG_OFFSET_BG0CNT, value);
 
         sGpuBgConfigs.bgVisibilityAndMode |= 1 << (bg + 8);
         sGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS;
diff --git a/tools/aif2pcm/Makefile b/tools/aif2pcm/Makefile
index e5cb6ad31..af7d19fe9 100644
--- a/tools/aif2pcm/Makefile
+++ b/tools/aif2pcm/Makefile
@@ -6,7 +6,10 @@ LIBS = -lm
 
 SRCS = main.c extended.c
 
-.PHONY: clean
+.PHONY: all clean
+
+all: aif2pcm
+	@:
 
 aif2pcm: $(SRCS)
 	$(CC) $(CFLAGS) $(SRCS) -o $@ $(LDFLAGS) $(LIBS)
diff --git a/tools/bin2c/Makefile b/tools/bin2c/Makefile
index 73f78980e..ab11e1b61 100644
--- a/tools/bin2c/Makefile
+++ b/tools/bin2c/Makefile
@@ -2,10 +2,13 @@ CC = gcc
 
 CFLAGS = -Wall -Wextra -Werror -std=c11 -O2
 
-.PHONY: clean
+.PHONY: all clean
 
 SRCS = bin2c.c
 
+all: bin2c
+	@:
+
 bin2c: $(SRCS)
 	$(CC) $(CFLAGS) $(SRCS) -o $@ $(LDFLAGS)
 
diff --git a/tools/gbafix/Makefile b/tools/gbafix/Makefile
index f12c8cc4f..5b410da08 100644
--- a/tools/gbafix/Makefile
+++ b/tools/gbafix/Makefile
@@ -1,8 +1,11 @@
 CC = gcc
-.PHONY: clean
+.PHONY: all clean
 
 SRCS = gbafix.c
 
+all: gbafix
+	@:
+
 gbafix: $(SRCS)
 	$(CC) $(SRCS) -o $@ $(LDFLAGS)
 
diff --git a/tools/jsonproc/Makefile b/tools/jsonproc/Makefile
index 69093a216..721da1025 100755
--- a/tools/jsonproc/Makefile
+++ b/tools/jsonproc/Makefile
@@ -8,7 +8,10 @@ SRCS := jsonproc.cpp
 
 HEADERS := jsonproc.h inja.hpp nlohmann/json.hpp
 
-.PHONY: clean
+.PHONY: all clean
+
+all: jsonproc
+	@:
 
 jsonproc: $(SRCS) $(HEADERS)
 	$(CXX) $(CXXFLAGS) $(INCLUDES) $(SRCS) -o $@ $(LDFLAGS)
diff --git a/tools/mapjson/Makefile b/tools/mapjson/Makefile
index d09acad50..9a49be506 100644
--- a/tools/mapjson/Makefile
+++ b/tools/mapjson/Makefile
@@ -6,7 +6,10 @@ SRCS := json11.cpp mapjson.cpp
 
 HEADERS := mapjson.h
 
-.PHONY: clean
+.PHONY: all clean
+
+all: mapjson
+	@:
 
 mapjson: $(SRCS) $(HEADERS)
 	$(CXX) $(CXXFLAGS) $(SRCS) -o $@ $(LDFLAGS)
diff --git a/tools/preproc/Makefile b/tools/preproc/Makefile
index 3d3275819..63dedda1f 100644
--- a/tools/preproc/Makefile
+++ b/tools/preproc/Makefile
@@ -8,7 +8,10 @@ SRCS := asm_file.cpp c_file.cpp charmap.cpp preproc.cpp string_parser.cpp \
 HEADERS := asm_file.h c_file.h char_util.h charmap.h preproc.h string_parser.h \
 	utf8.h
 
-.PHONY: clean
+.PHONY: all clean
+
+all: preproc
+	@:
 
 preproc: $(SRCS) $(HEADERS)
 	$(CXX) $(CXXFLAGS) $(SRCS) -o $@ $(LDFLAGS)
diff --git a/tools/ramscrgen/Makefile b/tools/ramscrgen/Makefile
index 9aa309aa1..858db1a77 100644
--- a/tools/ramscrgen/Makefile
+++ b/tools/ramscrgen/Makefile
@@ -6,7 +6,10 @@ SRCS := main.cpp sym_file.cpp elf.cpp
 
 HEADERS := ramscrgen.h sym_file.h elf.h char_util.h
 
-.PHONY: clean
+.PHONY: all clean
+
+all: ramscrgen
+	@:
 
 ramscrgen: $(SRCS) $(HEADERS)
 	$(CXX) $(CXXFLAGS) $(SRCS) -o $@ $(LDFLAGS)
diff --git a/tools/rsfont/Makefile b/tools/rsfont/Makefile
index 582be7b88..abe1cab51 100644
--- a/tools/rsfont/Makefile
+++ b/tools/rsfont/Makefile
@@ -6,7 +6,10 @@ LIBS = -lpng -lz
 
 SRCS = main.c convert_png.c util.c font.c
 
-.PHONY: clean
+.PHONY: all clean
+
+all: rsfont
+	@:
 
 rsfont: $(SRCS) convert_png.h gfx.h global.h util.h font.h
 	$(CC) $(CFLAGS) $(SRCS) -o $@ $(LDFLAGS) $(LIBS)
diff --git a/tools/scaninc/Makefile b/tools/scaninc/Makefile
index 53c9d0060..1516f159c 100644
--- a/tools/scaninc/Makefile
+++ b/tools/scaninc/Makefile
@@ -6,7 +6,10 @@ SRCS = scaninc.cpp c_file.cpp asm_file.cpp source_file.cpp
 
 HEADERS := scaninc.h asm_file.h c_file.h source_file.h
 
-.PHONY: clean
+.PHONY: all clean
+
+all: scaninc
+	@:
 
 scaninc: $(SRCS) $(HEADERS)
 	$(CXX) $(CXXFLAGS) $(SRCS) -o $@ $(LDFLAGS)