Undertow was composed by Sage Guyton and Jeremy Wakefield.
- 30a. "No Free Rides" - SpongeBob slides to Boaty.
- 75b. "That's No Lady" - Mr. Krabs sees "Patricia" for the first time.
- 95b. "To Save a Squirrel" - Patrick smells something good.
- 101a. "House Fancy" - The roof of Squilliam's mansion is shown.
- 137a. "One Coarse Meal" - The opening, with Mr. Krabs about to take a bath.
- 149b. "Tunnel of Glove" - The music that plays on the ride.
- 162. "Ghoul Fools" - The opening.