Dotsarecool, he doesn't crash yet, but that should be easy to do.
Aqualakitu, I randomly came up with that idea for a timing race. Pass the level on a certain amount of time and you can go on, otherwise try again. I totally didn't even think of Brutal Mario and the Haunted Hall at that time.
EDIT: Something I pulled out while being bored. xD
EDIT: Video removed because of dead link.