Board Thread:Questions and Answers/@comment-30300307-20170426071235/@comment-31689608-20170428153920

My theory is that the Chaos Emeralds become Super Emeralds only in times of extreme peril and dire need. In S3&K, I think Eggman was experimenting with the Master Emerald to create... something. Something so powerful, it threatened all life on the planet. I think he almost finished, but Sonic used tthe Super Emeralds to stop him.

I think he was creating Solaris.