Board Thread:General Discussion/@comment-1031724-20160901000706/@comment-679780-20160904161122

I think White Space logic is that the zones and boss battles arn't exactly just "locations", but moments in time. They ar emerely simulations, projections of memory.

This explains why when you replay Green Hill ZOne, that giant chopper will chase you know matter how many time you play it. Also while you can play faster and better than before, Sonic still follows a path and must repeat the same history he did last time.

The only thing that permanantly changes is how many Red Rings you collected.

Thats my guess how Metal Sonic, Shadow and Silver survive and repeat their bouts. Their rematches are re-enactments of moments in history but they obviously have more sentient control over the battles since I don't recall fighting Silver in Crisis City in such a way or so on.

Eitherway I think it's best not to over-think about it and White Space logic could simply be reliant on unexplaiable gameplay logic.