WARNING!!! SPORILERS

Graphics - 6
I mean, it's like any other game Graphics, what is there special about the graphics? I mean, for sonic game it's really good. 6/10

Sound - 7
The sound is okay, the coins sound pretty good though. The movement is good, like the noises when you move. 7/10

Addictive - 6
I did get close to beating the game, but it just wasn't very addicting to play, if it was I would have already beat the game. 5/10

Story - 9
The story is all over the place, but like most Sonic games, your trying to take down Dr. Robotnik. After that you have a ton of Sonic Characters,
Sonic the Hedgehog, Miles, Tails, Prower, Knuckles, Amy, Shadow, Rouge, Omega, Silver, Chaos, Metal Sonic, Zavok and Infinite, You also work with Sonic. 9/10

Depth - 8
The game has a lot of depth, so many level's, there is a map of the world, so much stuff, I could go on. 8/10

Difficulty - 9
The game was pretty hard, as to why I never beat the game. For people new to the game, I recommend easy mode, I did a harder mode, so yeah. I can't beat Shadow in the game.

Overall - 8.8
Graphics: Sonic game's decent, not standout. Special for Sonic. Rating: 6/10.
Sound: Good movement noises, coins sound nice. Rating: 7/10.
Addictive: Not compelling, didn't finish. Rating: 5/10.
Story: Chaotic, typical Sonic plot with various characters. Rating: 9/10.
Depth: Lots of levels, world map, lots of content. Rating: 8/10.
Difficulty: Challenging, hard to finish. Hard mode tough, I recommend easy mode. Couldn't beat Shadow.

Even with all of that, I say 8.8.

Per review rules games have to completed to be reviewed.
https://www.vizzed.com/boards/thread.php?id=25314