I did this in the Dojo. Go to Team Training and use your favorite turtle to get as many simple moves out of the way. RT+Y, RT+X, RT+RS (x6 variations), etc.
Most likely you'll get a few different team moves, too. Once you've done around 8 or so different moves just switch to another turtle quickly to keep the combo going and repeat by doing their TPKO and special moves.
As long as the combo doesn't cease you can switch turtles as much as you'd like since their specific moves count as different moves.
I also threw in a A, X and A, Y move. They're just two different jump attacks