Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
If you were looking for the article about Plankton's first giant robot, then see Chumbot.
If you were looking for the article about the families' robotships, then see Plankton's Freaky Robot Battle Suits.
If you were looking for the article about the tank from "Atlantis SquarePantis", then see Plankton's tank.

Plankton's tank robot is a tank owned by Plankton that can transform into a robot. It first appears in The SpongeBob Movie: Sponge Out of Water, and later appears as a robot in the episode "There Will Be Grease."



Plankton's tank is green with some yellow and red on different parts of it. It appears that the inside of the cannon is red and the tip is colored yellow to look like his eyeball.


The giant robot looks similar to Plankton, except for the massive size difference. The robot has two large arms, two long legs, a large red eye, and a cylindrical body similar to Plankton. Plankton can sit in the robot and control it by pushing the antenna-like levers.

Role in video games

SpongeBob HeroPants

The tank robot appears as the boss of the War Zone world in this game.

Nickelodeon Kart Racers

The tank robot appears trapped in slime in the background of the Bikini Bottom Boogie Nights race track.

The SpongeBob Movie: Sponge Out of Water

The tank robot is first dropped from Air Plankton when its wings fall off the condiment blaster. It then starts to shoot potatoes at the Krusty Krab. SpongeBob continues to shoot ketchup and mustard while Patrick is still holding the mayonnaise. Eventually, Patrick cannot hold the mayo any longer and throws it at the tank, stopping it.

"There Will Be Grease"

The tank robot appears in a brainstorming session from Plankton of what to do with the grease.


  • Plankton's tank robot is the only character in SpongeBob HeroPants to have an actual boss fight. The other "boss fights" for Squidasaurus Rex and SpongeBob's mind are simply a chase sequence and a normal level respectively.