The green fish with a propeller beanie hat appears when Patrick first enters the Valentine's Day Carnival. When the heart man first appears, four of the fish children are cheering around him: the beige, darker blue, gray, and green fish. Later, Patrick takes a lollipop from the blue fish with blonde hair.
The beige kid fish is seen on Bikini Bottom News. He is cheering in a crowd of Pretty Patty customers. Later, when SpongeBob is being carried to the Krusty Krab, the green fish with a beanie hat briefly appears between Dale and Charlie.
When Mr. Krabs gets SpongeBob and Squidward a gig at a kid's birthday party, the green fish with a beanie hat appears as one of the party guests. He is still wearing his mask from "Mermaid Man vs. SpongeBob."