Brain Eraser

Synopsis
Mordecai sees Pops naked and tries to forget about it. Rigby decides to help out by showing him a supernatural anime tape (Planet Chasers: Starlight Excellent). In turn, the anime tape removes Mordecai's mind and sends it into the tape. As Mordecai is now (literally) mindless, Rigby and Skips watch the tape, and they too get sent inside it. Now, they must erase Mordecai's memory of naked Pops and then save him from being inside the tape.

Plot
The episode begins with Mordecai and Rigby playing a video game, when Rigby finds Pops' "Mustache Monthly". The pair play "Rock, Paper, Scissors" to deliver Pops his magazine and ultimately, Mordecai loses. Mordecai walks in on Pops and sees him nude. An awkward moment ensues and Mordecai tells Rigby about his encounter with Pops. Rigby decides that Mordecai needs to play Strong Johns to relieve him of his stress. This does not work, as he constantly sees Pop's nude figure, so Rigby takes Mordecai to see Margaret. Mordecai hallucinates again, much to the confusion of Margaret.

As a last measure, Rigby and Mordecai go to a video store and make a purchase (mostly for a copy of "Good Cop, Sad Cop"). Rigby talks to The Movie Shack Hut Employee (Brain Eraser) and Rigby sees an oppurtunity to cure Mordecai of his bad memory. Eventually, Rigby forces Mordecai to watch Planet Starlight: Chasers Excellent and the video erases Mordecai's memories and thoughts. Rigby attempts to have fun with Mordecai by going bowling and throwing balogna on Muscle Man's car, but it does not work, as he is paralyzed from the tape.

Rigby turns to Skips for help. Skips and Rigby, then watch the video, encasing them in the same place as Mordecai. The trio then search around in Mordecai's memories and find The Naked Pops Memory. They began chasing The Naked Pops Memory, but Mordecai remembers his "bad" memory happening fast and the pace reflects on The Naked Pops Memory's actions. Mordecai starts remembering things to hinder The Naked Pops Memory's path, but it has no effect. Mordecai decides to drive off a steep cliff and cover The Naked Pops Memory once and for all. Mordecai then wishes for something to break his fall and the trio meets the video store clerk. He tells them the way out and Mordecai, Rigby, and Skips are back into reality. While Mordecai is celebrating his memory's displacement, Benson walks into the living room, fussing. While Benson is castigating everybody, his body towel slips off, revealing his slot (crotch) lifted up.