Couldn’t you ask someone if they already have an unpatched version and get them to send you the downloadable file?

the only way to have the unpatched version is to have the first version of sonic mania in your console when it first came out and you had to not download any patches for the game or update your console iirc

try speedrunning sonic time twisted bc you can have 7 chaos emeralds and 7 time emeralds new sonic design new levels and in mobile you have to move your device for special stages in special stage you race metal till the end and they are custom shield and you find big gold ring in future and silver big ring in past and the best is that it literally sonic 1 and 2 and 3 and knuckles and cd combined

true