Shellcracker is a crustacean-based Badnik created by Dr. Eggman. It closely resembles the Crabmeat robot, but there are notable differences. The Shellcracker has no projectile weapons, instead it attacks foes with one large spiked claw attached to a telescopic arm. First seen in Sonic 2's Metropolis Zone, Shellcrackers were normally placed on ledges and would punch Sonic off if he got too close. The Shellcracker's other pincer is much smaller than its spiked pincer, and is pretty much useless.