When Lunella finds a nasty comment on her Moon Girl social media page, her fixation on the troll threatens to take over her life.

When Lunella runs the rink for a night, she agrees to Casey's get-rich-quick scheme, which threatens Moon Girl’s reputation and her family's beloved business.

When Lunella loses a game of chess against a supercomputer, her obsession with winning drives the frustrated computer to program every device in the school to attack her.

When Lunella creates a chemical to change her hair, she accidentally turns her mane into a vengeful villain that vows to ruin her.