He has a scheme to use the seven Chaos Emeralds to empower the Chaos monster, which grows each time it consumes one of these magical emeralds.
Sonic becomes entangled in his sinister plot and our hero must enlist the help of his friends to foil Eggmans every move and prevent the Chaos monster from becoming more powerful.

Game Features:

New 3D world with spectactular details.

Six playable characters with individual abilities.

30 levels with spectacular bosses and mini-games.

Brand new mission modes with 60 different items and secrets

If you like this game,please buy it license version!support developers;)