Hidden image discovered in the new remake of Sonic CD for XBLA/PSN/PC/Mobile.
The Taxman (developer of the remake) had this to say:
So what is this image doing in Sonic CD?
Basically, earlier on in the remake’s development there were 2 new levels: Desert Dazzle & Final Fever (another boss)
Neither level was fully complete, and we had to make the call whether or not to go ahead and finalize them. Sonic Team felt the game should not deviate too far from it’s original form, and in retrospect it was for the best since we had a lot of other work to do anyway.
I left this image in since it’s quite a groovy looking Zone, and it also serves as a way for you to get to the stage select as Tails.