I just saw a thread made a while ago that asked if moonwalking could be done in Brawl. To answer the qustion Im pretty sure it cant be done.
Now from the replys in that thread it seemed like there are quite a few people who dident know what it was.
well its this
http://www.youtube.com/watch?v=wDiQ0qJd1p4&feature=related
Heard of it but never attempted it.