Sonic S Factor: Sonia and Silver
Check this for more info ----> http://info.sonicretro.org/The_S_Factor ... and_Silver
The S Factor: Sonia and Silver is an in-progress multi-level hack created by Aquaslash of Sonic the Hedgehog on the Sega Mega Drive/Genesis. The game allows players to choose between two characters, Sonia and Silver and offers several moves attributed to those characters.
This is a very proffesional looking ROM hack.... and is very playable!
6 years ago