Death Punchies

Death Punchies is the fourth episode of season 1 from Regular Show.

Summary
Mordecai and Rigby are playing a video game, and Rigby wants to be player 1, so they play punchies to see who gets to be it. Of course, Mordecai wins, as Rigby stinks at punchies every time, being beaten by Muscle Man, Pops, and even Skips, who made Rigby seriously injured by damaging one of his butt cheeks. Rigby overreacts and tries to trash Mordecai's room, and he finds an ad on a phone book for martial arts classes. Despite the classes being for self-defense, all Rigby wants to use the moves for is for revenge against Mordecai, which the sensei does not appreciate. Despite not being allowed to learn, Rigby steals a powerful punching move from the book and learns to use it. Rigby then conquers the park with his new punch and makes the inhabitants his slaves and also getting revenge on the ones who picked on him, causing Mordecai to stop him and learn another death kwon do move to block Rigby’s death punch. However, their fight gets them trapped inside a lava pit, and Rigby will not stop letting more lava into the pit until he beats Mordecai at punchies. In order to save themselves, Mordecai pretends that Rigby beat him, and he stops punching but now they are being surrounded by lava and are going to die. Mordecai uses another move to get himself and Rigby out of the lava pit. To make Rigby feel happy, he lets him be player 1 in the video game they were playing earlier. But when Rigby loses on the first round in the first few seconds, he wants to be player 2 now as he did not know the snails in the game were bad.