All I can say is this is one of the main reason I wanted a Wii, this game looks crazy and if it is even half as good as the GC or 64 version, good times will ensue. Here is the clip:

You can see the usual suspects: Mario, Wario, Zero Suit Samus, Kirby, Link, Snake, Star Fox, and also see Pit (Kid Icarus), I look forward to using the winged bad ass.