I would love to create my own game with my characters that I've created this year. Maybe a free-roaming style with a few battle combo ideas
stolen borrowed from Soul Calibur. You can choose to go in a team of four with muliti-player or computer controlled, one controlling each of the four characters with special moves and abilities, both in and out of battle. Like one can fly for a short period of time, or one can see if enemies are up ahead or not...
Or a Gorillaz game where you run like little girls away from zombies until you find a flamethrower of some kind. And you can bash each other up if you feel like it...with random characters as unlockables...That would be awesome...