Functional but not very exciting. Not a lot to do but the idea has some potential. Plays like pokemon or zelda. You're a bat, collect fruit and avoid the rocks people throw. Different areas but only maybe two or three?
I don't understand how to save. I've been refreshing the game periodically just to make sure it sticks. Sometimes the game doesn't load up at all. Sometimes some of the houses seem stuck in the air. I got a rainbow appearing over my city, though, that was cool. Not sure what it was all about though.