He is a dark purple fish with lime green fins and has magenta stripes on his head. He wears red swimming trunks. He is a sweaty, bumbling, lazy and complaining fish. His first words are: "Boy, I'm so sweaty."
I can turn into a skyscraper!
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In the UK version of "Walking the Plankton," Bubble Bust's appearance is removed for unknown reasons.
This may have been because Plankton falls into his butt, which the UK may have found too inappropriate for a kids' cartoon.