I had a lot of fun playing this game. I LOL'd the first time I saw "you broke his neck".
I did see you were having trouble with the wheels in another comment. That would be my biggest thing. I felt like a lot of the time I was trying to avoid the wheels going nuts instead of what kind of obstacle the level was throwing me.
I think the hardest part of making a game (at least for me) is often making it fun and you knocked that out of the park on this. Major kudos.