Big, Bad Battle of the Bionic Booger Boy Part Two:The Revenge of the Ridiculous Robo-Boogers by Dav Pilkey

Just when George and Harold thought they were safe - here come the robo-boogers! Disgusting and dangerous crosses between hi-tech wizardry and, well . snot, they're out to take over the world. Have your hankies ready!
Binding: Paperback / softback