"I bet you to uh... Uh... Uh..."
It sounds like you recorded this in one take without a script.
This is decent but it's far from looking good. Stop-action is HARD, I know that. But if you want to make it look good you need a higher framerate, and something to hold that camera steady so it doesn't interfere with the extra work you're doing. Substitute the longer still frames for video so the film grain gives the impression of time passing instead of looking awkward. The step at the end is a neat idea but it's too conspicuous - if the guy looked like he had just been walking through it would likely have been funnier than having it look as if the guy was deliberately stepped on.
