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The inside of Rock Bottom Museum contains many paintings and security lasers before they are turned off.
Role in the series
SpongeBob SquarePants eventually makes it inside of Rock Bottom Museum where he runs into Barnacle Boy who is working as a security guard at the time. Barnacle Boy tells SpongeBob that the robots have taken over the museum and if they aren't stopped, then he'll have to move in with his son. SpongeBob agrees to help him out and Barnacle Boy tells SpongeBob that he has to turn off the four security switches first. SpongeBob does so and manages to press on forward working his way up in the museum until he finds the entrance to the Trench of Advanced Darkness. This area is the first to introduce the Monsoon robot.