How to fuse with any - Dragon Ball GT: Final Bout
How to fuse with anybody.
First you need to go to the options screen. Then press start and select at the same time and hold for 9 sec.
Then go to the one player mode and press up and start on Cell then pick anybody you want then lose the battle without hitting your opponent once.
Then exit one player mode and go back to it and press up and start on cell, pick anybody then win this battle without coming close to losing.
When you win the screen will shake and it will be a picture of fusion rings with text saying in japanese.
Then at the bottom of the main menu screen there will be a new option click on it and you can fuse any to people on the game......