Features:

• Sonic's breakneck speed and dazzling world come to life -- speed is redefined through next-gen technologies, light bloom, and environmental motion-blur effects
• Sonic is joined by friends and foes from the franchise history, as well as Silver -- whose supernatural powers will wreak mayhem on Sonic's plans!
• Sonic's moves, attacks and environment interaction respond realistically to opposing forces -- dynamic environments have been specifically created to create a sense of speed & scale
• Explore town stages where Sonic will be able explore vast environments and play various sub-missions, and action stages where Sonic's blistering speed will be in full effect
• Up to four players can play as Sonic and his amigos in high-spirited multiplayer fun!

Editor Reviews:

Product Description:
Sonic The Hedgehog brings the popular character back to his high-velocity roots, for a new dimension of entertainment. In his first adventure set in the human world, Sonic meets a beautiful princess named Elise -- queen of Soleanna, the beautiful city of water. When she's kidnapped by Dr. Eggman, Sonic enters the world of humans to fight the menacing doctor to thwart his malicious plans. As he stops Eggman's plans to destroy this special kingdom of hers, Sonic will encounter and interact with new allies and enemies, like the mysterious, supernatural Silver. As Sonic speeds through the huge kingdom, the mysteries unravel.

Rating : - NOT as bad as everyone says.
So, I read all the bad reviews, and hesitantly bought the game. I thought "Surely it's not as bad as everyone says." Turns out I was right. I played through the whole story mode, with a minimum of three to five glitches. To be honest, this had one of the best plots and storylines Sonic The Hedgehog has ever had. The Sonic Episode was a little cheesy, but the Shadow and Silver make up for that.
Oh, and the loading times... Horrid. They made me sick. You sit there four at least five to fifteen seconds, get a two second cut scene, get another five to fifteen second wait, loads the level.

Graphics- Not bad, but far from the Playstation 3's potential.
Gameplay- Same old same old. Oh, wait, there was Shadow's unique air time hand combat, and his Chaos form. Oh, and Silver's Psychokinesis was far from the normal Sonic gameplay.
Storyline- As I said, one of the best.

As for the glitches, I got flung to an early death a few times, as well as continually bouncing off the water where I am suppose to die. But other then that, there weren't many huge problems.

Great game, and for Eight dollars, how can you not buy it? If you like Sonic, I say, no questions asked, buy it. If you are sort of 'It looks interesting, but I dunno...' Play SA2B, SADX, or something like that, THEN get Shadow The Hedgehog, Sonic The Hedgehog, Sonic Heroes, etc.