User blog comment:Shadowunleashed13/Reject Riot: Debug Mode Act 2/@comment-6710243-20130323011318/@comment-477304-20130323135526

Fang could obtain all the Chaos Emeralds in Sonic the Fighters if you played as him and completed the story mode, the canonicity of this could be disputed though.

In Sonic Triple Trouble, Fang was the final obstacle the player faced in the Special Stages, though Fang didn't actually have the emeralds.