This is a special "Blueprint Zone" for testing things like collision in Sonic 3&K. This zone also appeared in Sonic Mania, but the files were never included in the data. Now, we can finally see what the zone looked like with the leftover data in Origins.
Retro Engine Modding Discord - https://dc.railgun.works/RetroEngine
Twitter - / axanery
Bluesky - https://bsky.app/profile/axanery.bsky...
Discord - Axanery