Norman

Norman is a short haired tortoise shell guinea pig from the episode Norman the Lovable Guinea Pig.

He is Leonardo, Michelangelo, Donatello and Raphael's pet guinea pig.

When Norman drinks the prune juice, and then he got turned into a robot guinea pig villain named Robot Guineazilla, he roars and attacks Pizza Guy. While Robot Guineazilla was chasing Pizza Guy who is driving on his bike backwards and then forwards, Robot Guineazilla roars at Edith Gru and he chases after her. So Leonardo, Michelangelo, Donatello and Raphael defeat him with a DJ battle. After Leonardo, Michelangelo, Donatello and Raphael defeated him with a DJ battle, The dead Robot Guineazilla turned back into Norman again.