The T-Rex Chomper chomps on the competition. The mouth opens and closes, the windshield light up, the tires spin and a motorized hidden wheelie bar initiates epic wheelie action! An incredible combination of sound effects adds another level of awesome: engine starts, revs, tires burn out, engine roars, tires screech to a halt. There's also a rock button. Press the button and rock out to the signature music of the T-Rex Chomper. There's also a "simply sound effect" button. No animated action, but the windshield lights up as the engine roars and revs.