Changing mutants back to normal

[Lou 500]

I'd really like to see an episode where the turtles get accidentally turned into humans - they could go topside in daylight and have one day to experience what it is to be human.

Originally Posted by Donatello19

No way Slash would give up his new form to be turned back into a pet.

Not willingly. It would probably involve a struggle or a sneaky move. This also begs the question of how Spike would be towards Raph if he was returned to his original form - he clearly had his own personality and self-awareness as a tortoise, if he remembers all of it he'll just be resentful and nippy.