A mixed bag of inventive animations.
Really impressive for 5hrs work.
I think it might have been better with buttons - it's tricky to click the mouth (I had to zoom in to do so) and buttons would ensure we could see all the animations.
My favourites were definitely the falling (though that could have been a tad faster) and the shoes (really nice and smooth 'smoke').
When he bounces the head, the arm goes over it when replacing it. I think you should have taken the effort of making a 2nd arm on a layer underneath the head, to use for those few frames.
Amusing. Really impressive for 5hrs and I look forward to seeing the stuff you spent longer on.