superb! generally I don't like many sonic fan games for not really having the same vibe as the original games, but this comes pretty damn close. Playing a fan game that feels like it was made by people who actually understand how sonic level design works is a goddamn miracle. my only real complaint is that some of the music feels a little flat? I'm not sure how to describe it, but I reminds me of those 8 bit remixes of songs made in famitracker that sound not quite like an NES song, but a simulacrum of one.