Thread:GazzaB9/@comment-24839525-20191013221901/@comment-30134917-20191016215703

During one of his many "take over the world" adventures, Robotnik finds out about seven large statues that can supposedly summon unbeatable warriors if the Chaos Emeralds are placed in them.

So Eggman does exactly that and, as a result, the Chaos Emeralds develop sentience and take the statues as their new bodies and, after the MANY attrocities they've seen over the years, have concluded the world is its own worst enemy and the best way to get rid of evil is to wipe out all life.

So now Sonic has to defeat the Chaos Emeralds themselves in the form of unbeatable warriors and can no longer rely on Super Sonic to beat these new enemies he'd clearly need Super Sonic to defeat.