Mr. Krabs reads Mermaid Man and Barnacle Boy issue No. 53 featuring Captain Tightwad, and decided to make a costume of the villain. When he sees SpongeBob and Patrick playing Mermaid Man and Barnacle Boy, he shows Squidward his Captain Tightwad costume and gives Squidward the Doctor Negative costume so he can also play. But SpongeBob says that a super villain must commit a crime before they can be fought, so he and Doctor Negative pretend to rob a bank but are foiled by the security guard. So SpongeBob buys equipment from the Evil Stör and set a superhero scene where Captain Tightwad and Doctor Negative have the two heroes trapped on a giant strainer to be dunked in a vat of fry grease. But Squidward goes to far and tries to actually boil SpongeBob and Patrick, but this fails when the two heroes tip the strainer they're on and accidentally destroy the Krusty Krab. This leaves Mr. Krabs wanting to "just stick to reading comics."
Captain Tightwad wears a blue outfit with dark red cape and gold button with green letter "T". He is also wearing a black belt with two coin dispensers and gold button with a green dollar sign.
Coin Attack: Captain Tightwad's coin dispensers dispense coins with strings attached, which he can throw at enemies.
Super Strength: Captain Tightwad seems to have at least enough super strength to throw Squidward.
"Mediocre" Fighting Skills: As shown when fighting Patrick, Captain Tightwad's fighting skills are mediocre at best.
"Ahoy, you half-sea half-wits."
"Tremble before Captain Tightwad!"
"I think I'll just stick to reading comics."
Mr. Krabs thinks he's not evil but just misunderstood.