A game released again for those who did not play the dreamcast version.
Graphics are pretty OK for the most part. They do show age, but the Dreamcast's Graphics were pretty good at the time, almost even better then the other systems at that time.
The sound is OK. The music is still really good like in other 3D Sonic games, which I really like the music the best.
There is no true replay value since you only need to beat each character story once. There is a mission mode, it's worth it if you want to play...Sonic Sega Game Gear games, but if you want to play those games, go buy Sonic Gems instead.
Other then that, it is a pretty good game. You may just want to rent it since you may beat it in the rental time.