Possibly one of the most infamous "remasters"/ports out there - broken lighting, misplaced textures, and iffy collision detection are abound in this edition of Sonic's amazing 3D debut, and they only get worse and worse with each new re-release since they're all based on the previous port. Character models get a significant upgrade but it's just not worth everything else going wrong.

If you have to get this version on one platform, make it the Steam release where you can install the Dreamcast Conversion mod which fixes everything.