Board Thread:General Discussion/@comment-27134893-20160210093936/@comment-679780-20160211212954

It's hard to tell the extend of the damage he has done.

During Super Sonic's story in Sonic Adventure, Sonic goes on a "snooze cruise" and relive the moment when Chaos turned violence. We don't actually see Chaos turn into Perfect Chaos and not long after Tikal gets up and asks the Master Emerald to seal both of them within.

Much later when Sonic is standing at the ruins of station Square looking at Perfect Chaos, Tikal approaches him and tells that "he'll eventually destroy the world, like he did before!" Now this is a bit confusing because in the past we see Chaos pull a vanishing act and Tikal just goes up to the emerald moments later to fix things. The world didn't looked at all messed up.

I pressume Chaos started his rage on the Echidna city not far from where they are but we don't see or apparently hear any of the major catastrophic destruction or scremaing and we can also pressume after Tikal and Chaos were sealed, Angel Island rose for the first time. Thats my guess.