Next time you have a question like this, why don't you be a good little boy and run over to a website like
www.gamefaq.com instead of having to waste ALL that time having to create a whole new user name and making a thread about it?
You use every character (except Game and Watch, of course) to beat either Classic or Adventure mode. I personally did Classic mode because it's quicker.
Hope I helped?
If a tree falls in the woods, do all the others laugh at it?