Description:
This is a hack that fixes some bugs in the original Sonic the Hedgehog for Genesis. Refer to the Readme for details on what was fixed.
Make sure you use a clean ROM.
The project contains two patches: one for the US/EU version and the other has changes from the Japanese version. Only one patch should be applied, and the original ROM to apply them to must be the US/EU version for both.
Screenshots:
