The title is deceptive because if you're exoecting a Sonic game like on Genesis you'll be disapointed.

User Rating: 5.9 | Sonic Adventure 2 DC
The sequel to Sonic Adventure improved on the good parts of its prequel but the weaknesses were made even worse. The Sonic/ Shadow speed based stages were exactly like you'd want them to be. If the original Genesis games were made 3D this is how they would be. The levels are made to be blazed through and the expreience is just amazing. When you are Knuckles and his counterpart though the game is awful, searching the stages for emeralds is not at all fun, nor is shooting with Tails and Robotnick. I dont understand why they cannot just make what people want. Adventure 1/2, and Heroes dont do what anyone wants in a Sonic game. Untill things change it seems like Sonic as it once was is gone.
Graphics arent bad and actually are pretty good but it doesnt do enough to change the fact that this game disapoints.