Fix: Delete user.cfg from the game’s Documents\SEGA\Sonic Generations folder. The repack may have generated a config with unsupported resolution. Run the game as Admin once to regenerate.
SonicGenerations.exe from the install folder (not a desktop shortcut if incorrectly linked).This is the most critical component. The original retail version of Sonic Generations on PC had several issues: sonic generationseng repack by rg catalyst patched
The "Patched" version in RG Catalyst’s repack typically includes: Fix: Delete user
Fix: Install the VC++ Redistributables (included in the _Redist folder of the repack). Start installation – RG Catalyst repacks use a
Cause: Antivirus quarantined the crack.
Fix: Restore from AV quarantine. Add the entire Sonic Generations folder to your AV exclusions list.