Guy in Spider-Man Costume Backflips, Knocks Himself Out

The guy in this video thought it would be a great idea to dress up as Spider-Man, he tried to impress them by doing a bunch of lame flips and tricks at a kid's birthday party.

Problem is, when he tried to do a backflip, his feet slipped out from underneath him, and as a result...well...just push play...the cringe worthy moment arrive around 1:06.

The worst part? The kids think it's all part of the act and continue to laugh...