I was using that one as a joke. (Note that everytime I end the sentence with "Heh", i'm maybe joking)
Anyway, I would make a Mario 64 2 because the original one was awesome. I would add the characters from the DS version: Yoshi, Luigi, and Wario. I would also add new characters like Waluigi, Toad, Baby Mario, etc. The storyline would also be diffrent: When Mario wins a cruise to the Mushroom Islands, his ship is attcked by a rouge wave (I'm not copying Poseidon, heh) caused by Bowser. When Mario, Wario, and Waluigi wake up in the same spot, they saw Bowser. He claims he was on the island 1 week ago before they came along shore. So who was the person who caused the rouge wave? And where was Luigi, Toad, Baby Mario, and the rest of the gang? To find out the answers, you need to go to various portals that are all over the islands and find 300 Power Stars, plus 12 Star Keys, AND 3 Crystals. That would be the new Mario 64 if I could make one. I can, AND I WILL! Heh. Will, maybe not. But I can maybe send this to Nintendo or something.