The box is amazed at Marco's honesty, but says that he is not the liar. Marco breaks down further and says that he does not know if he just likes her image, but he wants to get to know her better. Jackie-Lynn says she liked a guy from skate camp last summer, Star says Oskar Greason, StarFan 13 says Star Butterfly, Pony Head says herself, Janna says 18th century poet John Keats and Marco, in a solemn display of affection, admits that it is Jackie-Lynn Thomas, surprising her. The box asks the final question: Who do you have a crush on? Everyone settles to answer honestly.

Pony Head apologizes for bringing the game for them to play and they all attempt to exit to the Bounce Lounge, but the box keeps them inside and demands that they finish the game. StarFan 13 claims she liked them, but when they all mutate further, she buckles and admits that she too disliked them. Janna, Jackie-Lynn and Pony Head admitted that they hated Star's brownies. As Marco was telling the truth, he demands that everyone comply. Everyone's faces suddenly deform with the box claiming that this is what lying looks like. The box asks the second question: What did you really think of Star's brownies? Star claims that everyone loves them which everyone agrees to, minus Marco because he did not try them. The box expands and encases Star's loft on the house which Star finds awesome, but concerns Marco. Janna breaks and admits that her favorite is pink as she does not like to conform to gender stereotypes. The box states that someone is lying and electrifies them into laughter. The box asks the first question: What is your favorite color? Pony Head says 'Pony Head color' (which according to Star is popular on Mewni), Star says yellow, to which StarFan 13 concurs, Jackie-Lynn says neon green, Marco says red and Janna says black (which Jackie-Lynn says is her second favorite).

It has them pinkie swear (or in Pony Head's case, tongue swear) that they will always tell the truth no matter what. They turn on the box and it comes to life.

Marco is reluctant to play it, but Star gets him to settle down with them in her bedroom. Pony Head quickly picks up that he is doing this to impress Jackie-Lynn so she suggests that they all sit down to play Truth or Punishment, a sinister sounding version of Truth or Dare. After having a batch of terrible brownies, they witness Marco attempting to be cool by playing a synthesizer. Star is holding a sleepover at the Diaz house with Pony Head, Jackie-Lynn, Janna and StarFan 13. Marco sets out to impress Jackie at Star’s slumber party, but a magical truth-telling game threatens to reveal too much for Star.

Conquer star vs the forces of evil