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.

The Beyonder gloms onto Lunella to learn about humanity, just as she's struggling to win a big science competition.

Lunella tries to overcome her awkwardness about fitting in at a slumber party by creating a mind-reading device but accidentally switches brains with Devil Dinosaur.

Hoping to help Casey have an epic bat mitzvah, Lunella makes an appearance as Moon Girl, which ultimately brings out the worst in Casey and causes a rift in their friendship.

When The Beyonder gives an arcade machine the ability to grant wishes, Lunella is pumped to use it.

Lunella is desperate to find a date to the school dance, but when she gets Kid Kree to be her escort, she learns that peer pressure can harm the relationships that matter most.