That...was me. I found the unported wad in a 2.0.1 server then converted the sprites to 2.0. What it does is replaces sprites in sonic.plr. You can't edit Sonic's character stats(Source code modification required) But you can use the sprite names in a new WAD so that Sonic's sprites are replaced.Someone's made it so that when you choose Sonic on the character select screen, his sprites are different in-game, like with the SRB2Riders Sonic, they ported it into a normal WAD file and it's the starting Sonic when you upload it. Sorry, I don't know how to describe it...