diff --git a/README.md b/README.md
index 0e66768..445a191 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ BRK
 
 ### Controller(dev/ctrl)
 
-A device that works like a NES controller, each button is a bit from a single byte.
+A device that works like a NES controller, each button is a bit from a single byte. Press `h` to toggle debugger.
 
 - `0x01` Ctrl
 - `0x02` Alt
diff --git a/emulator.c b/emulator.c
index bc23e31..4b2e3b6 100644
--- a/emulator.c
+++ b/emulator.c
@@ -258,6 +258,8 @@ void
 doctrl(SDL_Event *event, int z)
 {
 	Uint8 flag = 0x00;
+	if(z && event->key.keysym.sym == SDLK_h)
+		GUIDES = !GUIDES;
 	if(SDL_GetModState() & KMOD_LCTRL || SDL_GetModState() & KMOD_RCTRL)
 		flag = 0x01;
 	if(SDL_GetModState() & KMOD_LALT || SDL_GetModState() & KMOD_RALT)
@@ -394,7 +396,7 @@ main(int argc, char **argv)
 
 	devconsole = portuxn(&u, "console", defaultrw, consolew);
 	devscreen = portuxn(&u, "screen", screenr, screenw);
-	devsprite = portuxn(&u, "sprite", defaultrw, spritew);
+	devsprite = portuxn(&u, "sprite", screenr, spritew);
 	devcontroller = portuxn(&u, "controller", defaultrw, defaultrw);
 	devkey = portuxn(&u, "key", defaultrw, consolew);
 	devmouse = portuxn(&u, "mouse", defaultrw, defaultrw);
diff --git a/examples/paint.usm b/examples/paint.usm
index 2cb7cdf..7923584 100644
--- a/examples/paint.usm
+++ b/examples/paint.usm
@@ -29,7 +29,7 @@ BRK
 
 	( check paint )
 	#04 IOR #00 EQU ,skip ROT JMP? POP2
-	#05 ,brush_large ~mousex #0004 SUB2 ~mousey #0004 SUB2 ,drawsprite JSR
+		#05 ,brush_large ~mousex #0004 SUB2 ~mousey #0004 SUB2 ,drawsprite JSR
 	@skip
 
 	~mousex =lastx ~mousey =lasty