Noxious Enterprise's Super SPU-31 Liquid-Cooled Mobile Processing Unit, also known as SPU-31, is a robot that Plankton creates to try to steal the Krabby Patty secret formula and replace Karen in the episode "Komputer Overload."
It has a large bubbly blue center with a substance in it, and has light tan robot legs to hold itself up.
Role in episode
SPU-31 fights with the Command Module
and the T-119A Compumatic
, until Plankton joins the three robots to make one giant robot. SPU-31 makes up the bottom of the robot.