ButBub is a fanon episode of the 2016 Powerpuff Girls reboot.
Buttercup and Bubbles get into a little accident with one of the Professor's inventions, causing them to get conjoined. Blossom sees this and must figure out other ways on how to seperate the two since the Conjoiner doesn't have a reverse button. While waiting for their seperation, Buttercup and Bubbles try to do their favorite things/activities.
- This episode is most likely a homage to the Nickelodeon cartoon CatDog for some similarities:
- Buttercup and Bubbles getting conjoined just like the main characters Cat and Dog.
- Some scenes in the episode recreating scenes from the CatDog intro sequence, (for example, Bubbles chasing a garbage truck).
- In one scene, Buttercup and Bubbles, in an attempt to fly away from each other so that they split, retract and hit each other, causing the sign behind them to spin just like in the CatDog intro.
- Buttercup behaving like Cat and Bubbles behaving like Dog.
- The title card's logo resembling the CatDog sign logo.