IIIIITHE1IIIII on 09 June 2012
Come on. We all know that people who buy Nintendo games and systems prefer it simple. Adding new characters with their own unique moves and abilities would be very confusing. It would also be a waste of resources since everybody who knows how to play using Mario and Luigi feels safe using those familiar characters and wouldn't use the new ones because of their fear of making mistakes.
Remember: You can actually die in this game. It's not worth the risk.
