Tập 33: Cậu bé trở lại Hành tinh Cơ bắp để trải qua một bài kiểm tra khắc nghiệt về khả năng Ultimate Muscle của mình.

33

After defeating Eskara The Kid is summoned back to Muscle Planet to test his Ultimate Muscle power! He is weak and is bruised from his battles and so is given the chance to fight the Gruesome Threesome (a group of wrestlers who got their name from what their victims looked like) to find alternative ways to win other than getting beaten up. If Kid defeats the Gruesome Threesome, Kid would have to learn the true power of his Ultimate Muscle power. His father and the council believe this will toughen him up and give Kid a reputation that will make every villain fear Kid. But his Muscular foes won't be easy to overcome. If Kid loses the Gruesome Threesome will receive a full pardon. (Source: Wikipedia)