This game is kinda tough! I mean, after playing about 10 minutes, dying a couple times, I was able to get up to the bit with the shield-skeletons. That seems almost impossible, since you can't be on the ground, you can't be in the middle because of the jumping ones, you can't be on the top with the zombies...I dunno, maybe it's not TOTALLY unfair though!
Anyway the graphics are adorable, the gameplay is really nice. The music is cool. And the shoot-hovering thing seems like it could open up some interesting gameplay possibilities. Great job!