Genkisan | Launcher Issue Fix for Sonic the Hedgehog 4 - Episode II (PC - Steam) @Genkisan | Uploaded December 2019 | Updated October 2024, 13 hours ago.
If you are having a problem with the Launcher preventing the game from running, try this fix. Enjoy. :)

Download the config files, extract them from the zip file and place them in the game Config folder.
Link to configuration files below:
mega.nz/#!RKIlmSAC!RbHdHfu6OCZTKH15f0o0IH8NQwhlOi2_Rsl6LrVs27I

One more thing I forgot to mention in the video. Make sure to change the compatibility of the game executable located in the installation folder, Sonic.exe to Windows XP Service Pack 3. Right click on Sonic.exe, click on Properties, click on the Compatibility tab, checkmark Run this program in compatibility mode for, and highlight Windows XP Service Pack 3. Click Apply, click Ok and close everything out.

This is a link to the Old Fix for anyone needing a different method to get the Episodes I & II to work:
youtu.be/Ixs83Sx3Fg8

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