Post

@classicsoniccode.bsky.social

A few ways to play and see it: 1. Modify the disc image to set the byte at 0x2A75353 from 1 to 0 (712 prototype only) 2. Modify RAM in an emulator to set address 0xFF1581 to 0 (works in final) 3. Use PAR code FF1581:00 or Game Genie code AAL9-8AEB in an emulator (works in final)

Under the Surface of Classic Sonic@classicsoniccode.bsky.social

Thanks to c4/seafour4 on the Hidden Palace Discord server, a new prototype signpost sprite was discovered in the Palmtree Panic act 1 demo (DEMO11A.MMD) in the 712 prototype of Sonic CD, which was previously only seen in a magazine.

18/2/26, 1:22 am7 reposts19 likes

Under the Surface of Classic Sonic

@classicsoniccode.bsky.social

18 Feb

Note that you may find some parts of the level corrupted. This is because part of the level data is overwritten with the demo controller data, with the demo avoiding showing those corrupted parts.

Under the Surface of Classic Sonic

@classicsoniccode.bsky.social

18 Feb

This also doesn't apply to the special stages, but the special stages don't use separate files for the demos like the regular levels do, so there's not really anything to look into for that.