Scrapper is the engineer of the Constructicons. While the other Constructicons put their masterpieces together, Scrapper is the one who designs everything for them. Though his designs are among the best in Transformer history, Scrapper is a modest Decepticon who quickly shrugs off the praise he receives. In that respect he is the polar-opposite of his frequent second in command, Hook, who is an egomaniacal glory-hound.
Though modest, Scrapper is still a total nutcase. One of his favorite artistic liberties with his designs involves taking living Autobots and using them as raw materials. This vicious act is something Megatron finds admirable, as he considers Scrapper the most valuable of the Constructicons.
Scrapper combines with his fellow Constructicons to form Devastator.
His alt-mode is a yellow Front-end Loader.