Fans of Captain Underpants will love this app! The app contains a slightly animated version of the entire first book in the Captain Underpants series (you can choose to read it yourself or have the narrator read it to you) as well as an avatar generator (complete with ridiculous and somewhat crass silly names) and four fun mini-games. The mini-games include one where players try to aim the hypno ring at Principal Krupp, one where they maneuver a skateboard through a maze to reach Captain Underpants, one where they slingshot pairs of underpants at robots (Space Invaders style), and a sound mixer full of all of the grossest sounds you can imagine set to some funky beats. The longer you play, the more features will be unlocked. Perfect for kids who think fart noises are the funniest thing ever! *Side note: Scholastic also has a free app called Planet Pilkey which includes more content for fans, but also features a complicated coin-earning/spending system (boo!) and a comics generator (yay!) and overall is somewhat less user-friendly than the app reviewed here.