Not sure if this is thread-sufficient, but something that intrigues me is that within the sprites of the Taxman/Stealth version of Sonic 1, there's these new Chaos Emerald sprites. Of course the light blue is the added 7th Chaos Emerald and the purple is to make the set better match the modern Chaos Emerald colours. But what was the purpose of the orange Chaos Emerald here? Spoiler Doesn't seem like it was any sprite related to the glowing sprites of the Emeralds, nor does it replace the yellow when 7 Chaos Emeralds are present. Was there any reasoning behind this, like was it meant to be the Chaos Emerald of the editor-based 8th Special Stage, or is it just another enigma of an unused sprite? EDIT: Perhaps it could've been a nod to the Emerald monitor from Triple Trouble? There was a different kind of Emerald monitor implemented into the remaster's Debug mode.