This is a hack of Sonic the Hedgehog for the Sega Genesis. It replaces the main character with a fan character created by FelicaVal. She has several moves that Sonic didn’t have in the original game. This includes a spindash, jumpdash, tailspin attack, flying kick attack, and water skimming. A complete movelist is in the readme.
The patch is in xdelta format. The ROM should be in BIN format.