Seriously though. PLENTY of people requested Sephiroth, Steve, and Pyra/Mythra (well and Rex, but both are from XC2 so same diff.) So it's not that "nobody asked for" them. It's just that you want to see your f**king pipe dream become a reality. Which it won't, because Waluigi doesn't have any games where he is a main character, whereas every other Mario character except Piranha Plant does, and even then, Piranha Plant could represent Petey Piranha.