|| Unofficial name
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Bubble Bust is one of the riders on the cruise ship in the episode "Walking the Plankton."
He is an obese dark purple fish with lime green fins and has magenta stripes on his head. He wears red swimming trunks and is a sweaty, bumbling, lazy, and complaining fish.
Role in episode
Due to getting sweaty, he grabs a spoon that Plankton is hiding in to pour water down his back. After the process, Plankton falls near Bubble Bust's buttock area in his swim trunks.
- In the UK version of "Walking the Plankton," Bubble Bust's appearance is removed.