Action Toys for Role-Play and Sonic MerchandiseKnuckles vs. Dr. Eggman's Egg Crusher Mech (77005) is a LEGO Sonic the Hedgehog set packed with details and features for boys, girls and Sonic fans aged 8 and up who love thrilling adventures. For an interactive play experience, the posable toy mech features an opening cockpit, a rotating 6-shot cannon, a massive rotating paw and articulated links. 2 characters, Knuckles The Echidna and Dr. Eggman, invite you to exciting role-play as well as the hoverboard, the toy catapult with 2 boulders, 3 gold rings and 2 Chaos Emeralds. Action-loving kids will love this gaming toy. The cool Sonic playset also combines beautifully with the other LEGO Sonic the Hedgehog sets, which are sold separately. Fans of Blue Lightning will love to play with their favorite video game characters.