diff --git a/.gitignore b/.gitignore
index f47f8fe..bd44142 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,9 @@
+# Gimp tests files
 assets-raw/*.xcf
+
+# Auto-built sprites
+*_tmp.png
+
+# Build directories
+build-fx/*
+build-cg/*
diff --git a/Makefile b/Makefile
index 861a60b..aab0bac 100644
--- a/Makefile
+++ b/Makefile
@@ -66,8 +66,10 @@ src       := $(wildcard src/*.[csS] \
                         src/*/*.[csS] \
                         src/*/*/*.[csS] \
                         src/*/*/*/*.[csS])
-assets-fx := $(wildcard assets-fx/*/*)
-assets-cg := $(wildcard assets-cg/*/*)
+assets-fx := $(wildcard assets-fx/*/*.png \
+                        assets-fx/*/*/*.png)
+assets-cg := $(wildcard assets-cg/*/*.png \
+                        assets-cg/*/*/*.png)
 
 # Object files
 obj-fx  := $(src:%=build-fx/%.o) \
@@ -139,7 +141,7 @@ build-fx/assets/img/%.o: assets-fx/img/%
 	fxconv --bopti-image $< -o $@ $(FXCONVFX) name:img_$(basename $*) $(IMG.$*)
 build-cg/assets/img/%.o: assets-cg/img/%
 	@ mkdir -p $(dir $@)
-	fxconv --bopti-image $< -o $@ $(FXCONVCG) name:img_$(basename $*) $(IMG.$*) profile:p4
+	fxconv --bopti-image $< -o $@ $(FXCONVCG) name:img_$(notdir $(basename $*)) $(IMG.$*) profile:p4
 
 # Fonts
 build-fx/assets/fonts/%.o: assets-fx/fonts/%
@@ -147,7 +149,8 @@ build-fx/assets/fonts/%.o: assets-fx/fonts/%
 	fxconv -f $< -o $@ $(FXCONVFX) name:font_$(basename $*) $(FONT.$*)
 build-cg/assets/fonts/%.o: assets-cg/fonts/%
 	@ mkdir -p $(dir $@)
-	fxconv -f $< -o $@ $(FXCONVCG) name:font_$(basename $*) $(FONT.$*)
+	fxconv -f $< -o $@ $(FXCONVCG) name:font_$(basename $*) $(FONT.$*) \
+		charset:print grid.size:14x14 grid.padding:0 propotional:true profile:p4
 
 # Binaries
 build-fx/assets/bin/%.o: assets-fx/bin/%
diff --git a/Touhou.g3a b/Touhou.g3a
index 7a0e4da..ef5e64a 100644
Binary files a/Touhou.g3a and b/Touhou.g3a differ
diff --git a/project.cfg b/project.cfg
index ae722a9..e883742 100644
--- a/project.cfg
+++ b/project.cfg
@@ -9,7 +9,7 @@ NAME := Touhou
 # Internal name, should be '@' followed by at most 7 uppercase letters.
 # WARNING: If this convention is not followed, the add-in might not appear in
 #          the main menu of the calculator!
-INTERNAL := TOUHOU
+INTERNAL := @TOUHOU
 
 # Output file name. The default is to take <NAME>, replace spaces with dashes,
 # and add .g1a (or .g3a). You can specify a different folder if you want.
@@ -60,8 +60,8 @@ INCLUDE := -I include
 # Libraries. Add one -l option for each library you are using, and also
 # suitable -L options if you have library files in custom folders. To use
 # fxlib, add libfx.a to the project directory and use "-L . -lfx".
-LIBS_FX :=
-LIBS_CG :=
+LIBS_FX := -lprof
+LIBS_CG := -lprof
 
 # Base linker flags for the fxSDK, you usually want to keep these.
 LDFLAGS_FX := -T fx9860g.ld -lgint-fx $(LIBS_FX) -lgint-fx -lgcc
diff --git a/src/main.c b/src/main.c
index f30ff85..7bf7ff0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,17 +1,47 @@
 #include <gint/display.h>
 #include <gint/keyboard.h>
+#include <libprof.h>
+
+void draw() {
+	extern image_t img_battlefield1;
+	extern image_t img_battlefield2;
+	extern image_t img_battlefield3;
+	extern image_t img_bullet3_2;
+
+	prof_clear(0);
+	prof_enter(0);
+
+	dclear(C_BLACK);
+	// dimage(0, 0, &img_battlefield1);
+	// dimage(0, 0, &img_battlefield2);
+	dimage(0, 0, &img_battlefield3);
+
+	for(int i = 0; i < 2000; i++) {
+		dimage((i*79) % 216, (i*41) % 216, &img_bullet3_2);
+	}
+
+	prof_leave(0);
+
+	dprint(300, 10, C_NONE, C_NONE, "%i us", prof_time(0));
+	dprint(300, 40, C_WHITE, C_NONE, "%i us", prof_time(0));
+	dprint(300, 70, C_BLACK, C_NONE, "%i us", prof_time(0));
+	dupdate();
+}
 
 int main(void)
 {
-	extern image_t img_bg;
+	extern font_t font_touhou;
+	prof_init(1, 0);
 
-	dclear(C_WHITE);
-	dtext(1, 1, "Sample fxSDK add-in.", C_BLACK, C_NONE);
+	// dfont(&font_touhou);
 
-	dimage(20, 0, &img_bg);
-
-	dupdate();
+	for(int i = 0; i < 100; i++) {
+		draw();
+	}
 
 	getkey();
+
+	prof_quit();
+
 	return 1;
 }