Eek, an Urchin!

Characters

• SpongeBob SquarePants
• Squidward Tentacles
• Eugene H. Krabs
• Sheldon J. Plankton
• Sea Urchins

Trivia

• This episode may be Halloween related.
• This is the third time the Krusty Krab thermostat is used. The first was in Krabs a la Mode and the second time was in Planet of the Jellyfish.
• In comparsion, the sea urchin in this episode is about the same size as Plankton.
• This is the second time Plankton actually teams up with Mr. Krabs in order to solve a problem. The first was in Best Frenemies.
• This is the second time Mr. Krabs' money was eaten, in this episode's case, by the urchin. The first was by Mystery back in the episode My Pretty Seahorse.
• The title card for this episode looks similar to the title card for Demolition Doofus.
• Running Gag: Someone using a telephone or cell phone.