While Opera is a fork of 4DO/FreeDO and therefore largely compatible (or incompatible) with the same software they are… more and more changes are being made which will start impacting that overlap. While [[https://github.com/libretro/4do-libretro/issues|tickets]] should be filed for any bugs and incompatibilities found this list will help others looking to see if there are known issues with a title.

^Title^Description|
|Super Street Fighter 2 Turbo (US)|The speed indicator is offset to the left by 12 pixels. [[https://github.com/libretro/4do-libretro/issues/73|github ticket #73]] \\   \\  The intro sound offset is not a Opera bug. It is in the retail game.|
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