not very deep, but very well polished.
the scenes look great, love the style, and runs like a clock on ouya, which is quite hard to do.
downsides are the lack of depth, you can see everything the game has to offer in 5 minutes, but it is a game jam game so I can't fault you for that too much. I know there was more planned, maybe use this as a basis for the next jam.
the other is the issue of difficulty curve. the number of ghosts ramps up quite quickly and they can kill you quite easily. some health pickups and some UI information would also be welcome.
overall very nice.