I don't think I've even heard of a wall trick in Mario 64. I think SMB (the home port) is easy as hell when you're well practiced. I've never heard of someone not being able to beat it before. The arcade version was a different story. The infinite lives turtle glitch was a pain in the ass. I've gotten it to work a couple of times but that's it. I've been able to get small fire and jump over a flagpole before but those are pretty useless.