My Teacher is an Alien (1997)

A computer game based on the “My Teacher is an Alien” book series was produced by 7th Level and Byron Preiss Multimedia Company. Players can take the perspective of the three main children in the series, Peter Thompson, Duncan Dougal or Susan Simmons.

Storyline

Does your teacher wear weird clothes? You've always suspected that one of your teachers came from another planet -- but you just found out that it's true! In this all-new CD-ROM action-adventure game, you and your friends need to think fast and act even faster to survive. Fight your way through a series of arcade games and collect clues to figure out which teacher is the alien. Then convince your parents, the principal, the police - anyone who will listen - that you're right! You have just one week to stop the alien spaceship before it returns to its home planet with six of your classmates - and maybe you, too.