-> Written and storyboarded by Mike Roth and Jake Armstrong.

Rigby finally had enough of losing to Mordecai in both the video game and "death punchies" so he decided to train and challenge him.
!!Tropes used in this episode:
* AdrenalineMakeover: By both Mordecai and Rigby to use Death-Kwon-Do.
* {{Bowdlerization}} and EditedForSyndication: In the UK, Rigby's line, "Let's go! My [[UnusualEuphemism pepperonis]] are roasting down here!" was changed to "Let's go! My chest hairs are roasting down here!"
* ClothesMakeTheSuperman: Death Kwan Do wont work unless you have cut off denim shorts and a mullet.
* {{Determinator}}: Both Mordecai and Rigby sure don't give up in the final fight.
* DrunkWithPower: Once he gets the power of the Death Punch Of Death, Rigby goes on a rampage through the park, to make up for his constant humiliating losses at punchies.
* ILetYouWin: Mordecai realizes that in order to get Rigby to stop is this.
* IllKillYou: Rigby actually tells this to Mordecai several times, and means it. He tries to kill his best friend with the Death Punch, and they end up trapped in a pit fifty feet underground with lava pouring out the walls.
* NoSell: Mordecai learns the Death Block, which renders Rigbys Death Punch completely ineffective.
* TearsOfRemorse: After finally being declared of being player 1, Rigby started crying about dying in the lava.
* UpToEleven: Rigbys loss in punchies to Skips was so bad that he had to go to the hospital and get reconstructive surgery on his butt.