Mario football would be fun, but I wouldn't mind if they spent quite a bit of time, to make it more in depth like real football but with an awesome incorporated Mario items, power ups, & pick ups to make it fun. That's pretty much it, I wish they spent a little extra time on this new/last game for Wii though.... oh well
Super Mario Parkour. Just put the typical powerups in there, and make it a free roaming parkour game. If Mario is such a good jumper and once was named Jumpman, why hasn't there been a parkour Mario game at all? It could be the most awesome thing ever if done right. Mirror's Edge isn't enough parkour. We need obese plumbers saving princesses while doing parkour.