Robo-Sandy is the first boss that appears in the videogame Battle for Bikini Bottom and SpongeBob SquarePants: Battle for Bikini Bottom - Rehydrated. Robo-Sandy is based off Sandy Cheeks.
She takes over the Poseidome Colosseum and King Neptune summons
SpongeBob and Patrick to defeat her so he can regain control. SpongeBob and Patrick then must fight her and use her weakness to defeat her.
She is a giant robotic version of Sandy, and is able to remove her head and show a large red button, which if hit; causes damage.
In this, she appears in front of Sandy's treedome and SpongeBob must defeat her.