This page is reserved for more cut content from Sonic games that doesn't deserve their own pages. Further informations can be found on the Sonic Retro (where most of the infos on this page comes from and be licensed under its license). To avoid possible license conflicting, original findings has been moved to a new page.
A simple test level for RSDKV5 (the version of Retro Engine which Sonic Mania & Origins used). It was found on the S3&K portion of Sonic Origins.
A supposed second zone for the 2011 remake of Sonic CD, based on Sand Shower Zone from Sonic 2.
It's available in the dev menu under the "bonus" section. Select PCM:32 DA:8 in Sound Test will give you a mockup of the level.
A supposed true final boss for SCD 2011 involves you travelling to different part of time to destroy the final eggman robot. idk if the image above can also be triggered in the sound test (I took the image from Sonic Retro).
At one point there're also level data present for Final Fever in the game's files in one of those versions, but I just couldn't find it. If you knows which version had it, please let me know.
Original Findings has been moved to a new page To be continued...