Sinister Slug

Sinister Slug

The Sinister Slug has only appeared in the episode: The Bad Guy Club for Villains. He is a slug that most likely lives in sewers.

Looks

He has red eyes, and looks like a green sack. He also has very sharp teeth and he creates slime wherever he moves.

Appearances

• Mermaid Man and Barnacle Boy II (cameo)
• The Bad Guy Club for Villains
• Appointment TV (cameo)

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Villains

Main Villains: Sheldon J. Plankton • Karen • Bikini Bottom Criminals Supporting/Minor Villains: Alaskan Bull Worm • Atomic Flounder • Bubble Bass • Cyclops • Dead Eye Plankton • Dennis • Dirty Bubble • DoodleBob • Filthy Phil • Flats • Gale Doppler • Jack M. Crazyfish • Jellion Clones • Jellion King • Kelp Thing • Lip Service • Man Ray • Master Udon • Patty Gadget • Planktonamor • Puffy Fluffy • Sea Bear • Sea Whelks • Sinister Slug • The Big One • The Moth • The Tickler • Old Blue Lips • Plankton Family

Mermaid Man and Barnacle Boy

Episodes of SpongeBob: I • II • III • IV • V • VI: The Motion Picture • Night Light • Mermaid Man vs. SpongeBob • The Card • Ditchin' • Shuffleboarding • SpongeBob's Last Stand (non-speaking cameos) • Back to the Past • The Bad Guy Club for Villains • Mermaid Man Begins • Super Evil Aquatic Villain Team Up is Go! • Patrick-Man! • Mermaid Pants • Man Ray Returns • Appointment TV • Dirty Bubble Returns • Captain Pipsqueak • The Dirty Bubble Bass Episodes of Kamp Koral: Mermaid Men and Barnacle Boys Episodes of TPSS: X Marks the Pot • Super Sitters Shorts: Back to the Past Shorts Characters: Dirty Bubble • Man Ray • Barnacle Man • Atomic Flounder • The Moth • Kelp Thing • Reflecto • Sinister Slug • Jumbo Shrimp • Robot Mantis • Every Villain Is Lemons • The Chief • Super Acquaintances • The Quickster • Elastic Waistband • Captain Magma • Miss Appear • Notodoris • Prawn Places: Mermalair • Shady Shoals • Hotel Evil • Locker of Memories • Time Machine Nickelodeon Magazine Comics: Mermaid Man Cleans Up • Hungry for Heroes Music: The Lineman • Mermaidman and Barnacle Boy Action Theme • The Adventures of Mermaid Man and Barnacle Boy Theme Song Vehicles: Invisible Boatmobile Other: The Mermaid Man and Barnacle Boy Book • Time Machine • Fiber • Tickle Belt • Mermaid Man and Barnacle Boy Fan Club • Magic Claw • Man Ray's Power Glove • Mermerang • Dirty Bubbles' Bubble Launcher • Mermaid Man's Belt • Mermaid Man and Barnacle Boy Bran Flakes • Breakfast Bites • Mermaid Man and Barnacle Boy Paddleball Set • Mermaid Man and Barnacle Boy Trading Card No. 54 • The Mermaid Man and Barnacle Boy Movie (Transcript) • Mermaid Man and Barnacle Boy Video • Mermaid Man and Barnacle Boy Fridge Magnet • Orb of Confusion • Mermaid Man Watch • Mermaid Man-a-Thon