Sonic the Hedgehog: Rise of Mephiles

It has been two years since Eggman and Infinite we're defeated by Sonic and the Resistance, and everyone has enjoyed the long lasting peace.
But unbeknownst to sonic and his friends, Eggman has been scouring the globe, hoping to find a weapon that he believes will aid him in defeating sonic once and for all, a weapon known as the scepter of darkness. But once Eggman had found the scepter, he had know idea what he was about to unleash, for he had released an ancient and powerful being of darkness known as Mephiles. With Mephiles now free, along with resurrected villains of the past, it's now up to Sonic and his friends to find the 7 chaos emeralds, and combine their power with the sol and master emeralds in order to deafest what may be the deadliest enemy they have ever faced.