Trying to get a proper body, Mother Brain has Dr. Wily create a device that lets people trade bodies so that she can use Lana's from now on. Hilarity Ensues when she accidentally ends up in a three-way swap with Game Boy and Donkey Kong instead.
Tropes:
- Abhorrent Admirer: One in Simon's fairly long list, where a female ape falls in love with him when he asserts dominance over the simian tribe the N Team runs into.
- "Freaky Friday" Flip: Mother Brain sets out to trade bodies with Princess Lana. She ends up having Donkey Kong's body instead of Lana's, but quickly realizes being a giant unstoppable ape instead actually works out better for her. Meanwhile, Donkey Kong's mind winds up in Game Boy's casing, while Mother Brain's body plays host to Game Boy.
- Freeze Ray: Out of nowhwere, Kevin's Zapper can freeze targets instead of disintegrating them. That is, by encasing them in ice cubes formed out of icy Tetris blocks.
