This hack replaces the Main character with Shadow the Hedgehog seen in later Sonic games. It is based on the original Sonic the Hedgehog for Genesis. Shadow plays quite like Sonic does but has some moves he didn’t have in the original game. This includes Spindash, a attack button, and a Homing attack/Jumpdash by pressing jump while in midair.

The hack is based on the 1.0 version of the ROM in BIN format. It has not been tested on other versions or ROM formats. The patch is in xdelta format due to shifted data resulting in patches containing original code.

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