*Eggman decided to upgrade a now obedient Metal Sonic into his Neo Metal Sonic form once again to be used as his greatest weapon in the final battle during the war between the Eggman Empire and the Resistance, but the upgrade wasn't completed until after Eggman had already lost and went missing.

As Neo Metal Sonic was given Eggman's Bio-Data, genius, drive, and vision, he decided that he would use his persona to ensure his reign remained unbroken and then find the doctor so that he could hand the control of the world over to him.

Approximately a month after the end of the war between the Eggman Empire and the Resistance, Neo Metal Sonic, disguised as Dr. Eggman, made his first move by taking control of the Eggman Empire's wayward Badnik hordes that had scattered everywhere and directing them into attacking various villages across the globe.

As his first "trial" for Sonic, whom he kept a close eye on via a Flapper, Neo Metal Sonic had a Badnik battalion attack a village in order to draw Sonic into a fight. When Sonic met up with Tails there and the two emerged victorious, Neo Metal Sonic had another Badnik battalion attack a nearby village to lure Sonic into an ambush. He also made sure Sonic's success reached the Resistance so that the group's core staff member, Amy Rose, would join Sonic on the battlefield and get crushed with him.

After both hedgehogs ended up defeating the Badniks, Neo Metal Sonic noticed that Sonic was deviating from his projected path, much to his annoyance. However, when Orbot reported that Sonic was heading for a village where Rough and Tumble resided, Neo Metal Sonic had hopes that the skunk brothers could finish Sonic for him.

Although the skunk brothers failed, Neo Metal Sonic learned from surveillance that Knuckles the Echidna was still not protecting Angel Island. This meant the Master Emerald was there for the taking, which Neo Metal Sonic realized would accelerate his master plan significantly.*