This mod replaces Sonic's in-game animations with those left over from Tokyo Game Show 2005. There are certain animations from TGS 2005 that couldn't be included due to how unfinished they were, for example: grinding and goal pose animations. I don't have the software to fix up those animations (Autodesk 3ds Max is required), so someone else will have to do that in due time.
I've compiled two different versions, one for the Xbox 360 and one for the PlayStation 3. These include sound.arc and player_sonic.arc, both altered to work on their respective hardware (or emulators).
This mod does also include a sound mod (hence the presence of sound.arc) that removes Sonic's grunts when he jumps and homing attacks (like in Tokyo Game Show, E3 and the Xbox LiVE Arcade Demo). If you don't want that, just don't apply sound.arc and you should be good.