- "The Responsible": Anais takes a bath here.
- "The Prank": Gumball and Darwin hide from Richard here.
- "The Secret": Gumball and Darwin arrive here after their adventure through the sewers.
- "The Wand": A similar bathroom appears during Richard's series of flashbacks.
- "The Curse": Gumball takes a shower.
- "The Knights": Richard showers and is thrown out.
- "The Flakers": Gumball puts a poster of his mom being angry onto the bathroom mirror.
- "The Authority": Richard is seen showering, and is interrupted by Nicole and Joanna.
- "The Hero": Gumball and Darwin try to take a shower, but are rejected by Anais.
- "The Tag": Richard takes a bath of melted cheese.
- "The Voice": It is indirectly mentioned as the place where Gumball, Darwin, Anais, and Richard brush their teeth.
- "The Internet": Gumball and Darwin notice multiple living bathroom furniture.
- "The World": Richard is seen brushing his teeth.
- "The Kids": Gumball and Darwin make fun of their parents here.
- "The Coach": Gumball and Darwin fail to brush their teeth because their mouths were wide open.
- "The Password": Gumball and Darwin give their father a bath.
- "The Procrastinators": Gumball and Darwin try on make up, and later make their own music.
- "The Burden": Gumball and Darwin bathe with Principal Brown's hair, which they believe is Chris Morris.
- "The Mirror": Richard lands here after The Snatcher's curse is removed.
- "The Man": Richard and Louie brush their teeth.
- "The Lie": Gumball and Anais come here after delivering presents right before Miss Simian arrives.
- "The Countdown": Darwin prepares for his day.
- "The Nobody": Gumball and Darwin are seen here searching for the culprit.
- "The Downer": Gumball flushes down a lego piece, and later takes a shower.
- "The Money": The Wattersons are seen using it.
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