I'm not sure of the exact mechanics, but reverse aether does that when slants are too steep and you're high enough and point your control stick against the slant. We talked about this very briefly a long while before. You can really only go through the 2nd part of halberd by going through the stage with that method and actually survive.http://www.youtube.com/watch?v=J4ZN9l1Bees
Any explanation for this? Ikes body went through the stage......hmm. Maybe it would be possible to land on stage with this method. Just a theory though. Still clueless about what happened. Maybe cause he up-b'ed through the corner....not sure.