Board Thread:General Discussion/@comment-1031724-20160901000706/@comment-1031724-20160902230005

If it is a permanent reset, I'll FanonDiscontinuity it.

Also, if it's a standalone game, doesn't that mean there are no other games set in its continuity?

Yes, Nack mysteriously disappeared, as did Mighty when his second appearance saw the introduction of Team Chaotix, who would make some reappearances, and Ray, Bean, and Bark were one-shot in pretty shaky games.

As for Angel Island, who knows, but Rouge has stolen the Master Emerald in Sonic Rivals 2 (though they're both at Sonic's birthday party in Generations).