Emerl was a powerful, ancient robot that was discovered and modified by Gerald Robotnik, and later found again by his grandson Dr. Eggman. Eggman created his Phi robots based on Emerl, but later found a way to bend Emerl to his will. Before this, Emerl befriended Sonic the Hedgehog and several of his allies, even becoming involved in a clash between Sonic and his friendly rival Knuckles the Echidna. Emerl later went out of control and threatened to destroy the world, but was halted by Sonic, regaining his senses shortly before meeting his demise. His parts and data were later used by Eggman to build another robot named Gemerl, who took up residence in Mobotropolis. (SB, SA3, StH: #257, #271)
- Possibly due to the large role played in the Sonic X anime, SEGA disapproved of Ian adding Emerl to the main Archie Sonic the Hedgehog comic. However, the fact that the reboot continuity includes the events of most of the games indicates that a version of Emerl did exist in the new reality; this version later appeared in a flashback.