Abrasive SpongeBob makes a reference to "The Lost Mattress" when he says, "I wouldn't hang out with you for all the money you left in Krabs' mattress!".
Out of the Abrasive SpongeBob's insults, he makes a good point to Sandy and Mr. Krabs for the former inviting him to be a test subject without notifying beforehand, while the latter tried to give SpongeBob a shift that lasted 17 hours without payment.
The lyrics to "Musical Doodle" match what happens to SpongeBob throughout.
The record player under Gary's shell reappears since "Your Shoe's Untied".
This is the first time SpongeBob's abrasive side is shown.