Punch the air or hit a hard surface to activate sounds and SMASH like Hulk! The Hulk Smash FX Fists set includes 2 fists so kids can gear up like the gamma-powered hero! With 1 electronic fist, kids can practice 3 awesome ways to smash and activate Hulk sound effects! Punch the air to hear motion-activated whooshing and punching sounds, or punch down on a hard surface to hear smash sounds and growling. Continue to punch the surface repeatedly to hear smash and roar effects get even more wild! With 1 electronic and 1 non-electronic Hulk fist, the Hulk Smash FX Fists let kids imagine muscling up like their favorite gamma-green hero and smashing into battle action! Copyright 2016 Marvel. Hasbro and all related terms are trademarks of Hasbro.