I'm playing this game a lot like Cave Story (Doukutsu Mongatari) in that it's a small, free, pixely action/adventure game. You play this guy named Lyle whose kitty was stolen and he has to throw blocks at bad guys to get him back. It's really cute, very fun, and pretty difficult. I made some fanart for it! This is like the first picture I've drawn in a really long time. Flash w/tablet.
Download it here. I highly recommend it.