The animation and music are great. Gameplay is good too, and somehow reminds me of reverse-Mario or something, where a second player has to go through the mess the first one made XD
If I had to provide any (hopefully constructive!) critical feedback, I'd say I wish it were a bit faster paced. It also looked like the bottom of the stage would kill me, and it was hard to shake the association. Maybe I'm carrying too much baggage from Mario XD
Good job!