A mysterious group later retrieved badly injured Wily on behalf of "Mr. X", under whose employ Wily was abducted by Sigma from "Mega Man X", leading to the second Sonic/Mega Man crossover, Worlds Unite. Brought to the Lost Hex on Sonic's world, he found himself reunited with Eggman, from whom he learned about their prior partnership, although Eggman lied about his attempt to kill Dr. Light. Reconciled, the doctors persuaded Sigma to capture Sonic and Mega Man, whom they transformed into evil versions of themselves (dubbed "Sonic Man" and "M'egga Man") while secretly programming them to revert each other and set them on Sigma; this would allow them to take over his plans, which involved absorbing energy from different worlds using machines called Unity Engines. However, the intended reversion happened too soon, exposing the doctors' treachery and forcing them to team up with anti-robotics terrorist Xander Payne and an army of Sega/Capcom heroes led by Sonic and Mega Man. During a battle between the heroes and Sigma's forces, the doctors eventually infiltrated the Lost Hex with Payne's help and prepared to claim the energy that the Unity Engines had harvested, cutting off Sigma's power supply in the process and allowing Sonic and Mega Man to defeat him. However, Payne ultimately betrayed the doctors and altered time to prevent the crossover from occurring, although Wily (along with Eggman, Mega Man, and Sonic) retained some recollection of the ordeal. Thwarted again, Wily, after realizing that Mr. X was actually Payne, unhappily went back to the old drawing board. This led to the comics' "Mega Man 4" adaptation, in which Wily planned revenge on Dr. Cossack, another one of Light's colleagues, and had Break Man capture Cossack's daughter Kalinka to use as leverage. The series went on hiatus after this, ending the story on a cliffhanger.