This video is a super mario bros. mod, where it turns a regular level into masocore. If your wondering what that is, it would probably be helpful to check out that page first. This dude in the vid is hilarious, and though its long, I would recommend watching the whole thing. He gets funnier every minute. 

EDIT- I realize this is old. Did I ever say it was new? If you've seen it, I'm sorry. It only had 200,000 views so I figured it wasn't to popular.