hikarutilmitt
Member
2 new characters, completely restructured combat system & reworked movelists in FS
but
if you value single player content, FS is not much more than an arcade port, whereas 5O has a good deal of SP content.
Don't forget that the animation system was reworked a lot! It's related to the combat engine, but it's its own bullet point, IMO, because of how much it changed the look of the game.