41 Mermaid Man and Barnacle Boy II

SpongeBob wins a conch shell that can summon Mermaid Man and Barnacle Boy in emergencies. However, he abuses this privilege, constantly calling the superheroes to help with everyday tasks. Eventually, the two heroes are exhausted, and SpongeBob apologizes, explaining that he just wanted to spend time with them. As a result, they let SpongeBob join them on their daily patrol, but he ends up doing several accidental things, annoying them. At a diner, Mermaid Man and Barnacle Boy decide to "ditch" SpongeBob by asking him to search for their theme song on the jukebox. Outside, however, they are attacked and trapped by their arch nemesis, the Dirty Bubble. SpongeBob comes outside to tell them, and sees their predicament. He asks the Dirty Bubble for his autograph, saying that he is his favorite supervillain, and "accidentally" pops the Dirty Bubble with a pencil tip, saving the day. Note: This is the final episode of the series to use traditional cel animation; from the second season onwards, the series would use digital ink and paint. Guest appearances: Ernest Borgnine and Tim Conway as Mermaid Man and Barnacle Boy, Charles Nelson Reilly as the Dirty Bubble.