This fast-changing, 20-inch robot will have kids eager to take on the Decepticons! In just one step, GRIMLOCK can transform from a gigantic robot to a dinosaur with a chomping jaw and light-up eyes. With pop-out weapons and a mighty sword, Stomp & Chomp GRIMLOCK gets kids ready for any TRANSFORMERS adventure. Power battlers and one-step changing figures (sold separately) activate different lights, sounds and weapons. 2 "AA" batteries required (included). Which mode will you put him in for the most awesome Transformers action? It's up to you to decide!