Sonic the Hedgehog Action Figure 2Pack Dr. Eggman Metal Sonic Eggmans Revenge Rivals, dating back to the Sega Genesis days! Metal Sonic and Eggman Dr. Robotnik! This 2-pack has these enemies facing off! This Sonic the Hedgehog Eggman's Revenge 2-pack features a 3-inch tall Metal Sonic the Hedgehog and 4-inch tall Eggman action figures packed in a displayable window box.