This game is a really good one so let's start this review! The reason the graphics are seven is because they are a little scratchy. How I know is because eve played some other Sega Cd games on vizzed. For example when you do the super peel out you can see the pixel like look of it. Now on to the sound. I really like the sound of this game. I like every single song this game has to offer. Since sound didn't get a ten here is a couple of reasons why. This might not happen to you but it happened to me. When I finish a special stage the jump sound is the special stage jump sound and when you use the super peel out or spin dash the sound is just so annoying that I can't even explain it! This game is so addictive that I just can't stop playing it! Because once you play it you'll never go back. On to the story! The story is where sonic has to stop Dr.Eggman aka Dr.robotnik of how ever you spell it from chaining down little planet and stop him from corrupting the futures of the places and get the time stones. I gave the depth a four because the game only has seven levels. If those deleted levels were in the game I would of rated it higher. This game is not hard. It's just not the hard type of game. So that overall is a ten because the game is really good. Catch ya later!