Captain Underpants and the big, bad battle of the Bionic Booger Boy, part 2 : the revenge of the ridiculous Robo-Boogers / by Dav Pilkey ; with color by Jose Garbaldi, Wes Dzioba, and Corey Barba.
George, Harold, Captain Underpants, and Sulu the bionic hamster battle the three ridiculous Robo-Boogers in an attempt to turn the Bionic Booger Boy back into Melvin Sneedly.