Mechanical Bio-arm - SpongeBob Wiki

Object

The Mechanical Bio-arm is an invention created by Plankton in the episode "Best Frenemies."

Description

It resembles an arm made of metal. It also has fingers and a red button on it to activate it.

Role in episode

Plankton attempts to use the bio-arm in a way to help get the secret formula from the Kelpshake restaurant. However, the bio-arm ends up malfunctioning, causing an upset Plankton to press the red button repeatedly. This ends up causing the bio-arm to slap Plankton a bunch of times.

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