...ve around the Mario World and do missions. They can break up a gang war between Shy Guys and Koopas, or disarm a Bob-omb tied to a citizen. Perhaps also ride around on Yoshi or fly on Lakitu's cloud, and use the power-ups as your arsenal. Maybe a PG version of GTA. Villains could include Kamek, King Boo, Petey Piranha, Wiggler, and Bowser, among others. Playable characters could be Mario, Luigi, Peach, Wario, Waluigi, Toad, Toadetter, and Daisy. As an open world, there could be tennis and basketball courts, baseball and soccer fields, golf courses, and racetracks where one can play the various Mario sports.