Very fun little score attack game, especially if you've got a tablet to play it on. If I had this on my DS, I'd be playing it nonstop. I think it's clever how drawing one shape clears the danmaku from both of them, so there's a little risk and reward for waiting to clear danmaku. My only criticism is that I think what's accepted as a line could be a little bit more permissible; you have to draw them pretty straight for the game to recognize them.