Invincible

SpongeBob SquarePants and Patrick Star, both with green hair and mustaches, jump excitedly on a dark, underwater road before falling into a dark pit. They are later seen falling through a dark, blue-lit environment, and then appear distressed against a dark curtain backdrop. A green mermaid with a pink top and blue hair is shown falling down a rocky slope. The scene ends with a small, yellow, rectangular object floating in a dark, blue-lit underwater environment.