https://www.youtube.com/watch?v=e_mrxssK4E8
details in the video but you might want to avoid this fan game and probably not trust the developer at all cause this sends up a lot of big red flags for a variety of reasons.
edit: more info here: http://www.sonicretro.org/2017/12/ps...d-downloading/
here: http://forums.sonicretro.org/index.php?showtopic=37638
and here: https://www.reddit.com/r/SonicTheHed...s_a_malicious/