Ep 13. Thumb War

Rikky, the son of Rufus, comes to Pure Heart Valley for a visit. He is quick to make fun of Mao Mao and his friends, and challenges them to a thumb wrestling competition. Mao Mao accepts his challenge, but soon realizes that Rikky is not an ordinary kid. He possesses incredible strength and skill, and easily defeats Mao Mao in the thumb war.

Undeterred, Mao Mao challenges Rikky to a rematch. This time, Mao Mao uses his training and experience to outsmart Rikky and win the thumb war. However, Rikky is not one to take defeat lightly. He reveals that he had cheated in their previous matches with a special ring that allowed him to control Mao Mao's thumb.

Mao Mao is furious and demands a fair rematch, but Rikky refuses. Instead, he challenges Mao Mao to a fight, with the winner being declared the true champion. Mao Mao tries to reason with him, but Rikky is determined to prove that he is the strongest.

The fight between Mao Mao and Rikky is intense and brutal. Mao Mao is knocked down multiple times, but he refuses to give up. With the help of his friends, Mao Mao is able to turn the tables and win the fight. Rikky admits defeat and acknowledges Mao Mao as the true hero of Pure Heart Valley.

In the end, Mao Mao and Rikky come to a mutual understanding and become friends. Mao Mao teaches Rikky the importance of fairness and honesty, and Rikky learns that true strength comes from within, not from cheating or bullying others. The two set off on a new adventure together, ready to face whatever challenges may come their way.