The "proper story" concluded on , when an official version finally arrived on mobile devices.
You forgot the OBB file. Re-download the .obb and place it in Android/obb/com.sega.sonicmania/main.obb . Clear the app cache and restart. Sonic Mania 0.0 8 Android Download High Quality
Many "free" APKs are wrapped in aggressive advertising frameworks. You might get the game to run, but it could bombard you with unskippable video ads every time you finish a level, or place invasive icons on your home screen. This significantly degrades the "High Quality" experience you were promised. The "proper story" concluded on , when an