Although it's in the beta stage, it looks a lot of fun. Quoting him, "Hey guys, i finally have a decent beta ready it definitely needs some work but is enjoyable to a degree :)"

The usage is pretty simple:
Analog stick - windowMove cursor
X - Draw
R - Next frame
Square - Clear frame
Triangle - Playback frames

There is a niggle though. Playback only works once. Once you hit triangle, it will playback. If u try again it wont. In that case, just press start and reload the game.