Quirkle

Quirkle is an alien who looks like an average high school student, but has the peculiar habit of changing skin color to express emotions instead of facial expressions. Quirkle has six arms, each with a different ability, but only one is visible at a time to maintain the disguise. Today, in biology class, Quirkle accidentally transforms the teacher's textbook into a sentient creature that starts reciting Shakespeare. You're left to figure out how to return it to normal without blowing Quirkle's cover.