The exterior of the stadium contains green wood that forms the perimeter, a large main gate surrounded by several smaller ones, ticket booths made out of hay which surrounds the stadium, and a giant pink shell that has the name written on it on the top of the building.
The interior of the stadium has green seats and other special green seats for patrons, hallways from the gates that lead into the inside area, green stairs that lead to higher level seating areas, a blue metal ground which leads into Clamu's staging area, and some red rope which surrounds Clamu's holding area.
Role in series
"The Smoking Peanut"
SpongeBob and Patrick go to the Oyster Stadium to watch Clamu perform, but she is sleeping. To get her attention, SpongeBob throws a peanut at her, which causes her to wake up and cause a dramatic outbreak of her crying very loudly. This leads SpongeBob into trouble which he tries to clear up throughout the episode.
It reappears in the climax of the episode where Patrick is held captive in the middle of the stadium, falsely accused of being the perpetrator, and is thrown peanuts at by the audience. Just then, SpongeBob comes in to confess to Patrick's innocence in defense and admit that he himself caused the disturbance. At that moment it is then revealed that SpongeBob throwing the peanut is not what caused Clamu's outburst, but rather Mr. Krabs did by stealing her pearl. This leads the audience to throwing peanuts at Mr. Krabs instead as his karma is served.