Popular games for collection Sonic Rivals

The game begins with Doctor Eggman turning Tails, Amy Rose, Rouge, and the Master Emerald into cards with his new device. Sonic and Knuckles arrive on the scene, and find out what has happened. Knuckles, bent on saving the Master Emerald, tells Sonic that teamwork is out of the question and that he needs to get to Eggman first. Sonic snickers and says that he likes a good challenge. Meanwhile, Shadow the Hedgehog receives a distress signal from Eggman. Suddenly, a mysterious hedgehog named Silver appears from the future. Silver is then pursued by Shadow. When they encounter each other, Silver tells Shadow he needs to get to Eggman, first. After numerous conflicts, it is revealed that Dr. Eggman is in fact Eggman Nega and that the real Doctor Eggman is captured into a card prior to the story. After one final battle with Sonic, Knuckles, Shadow and Silver, Nega is defeated, everyone is reverted to their original forms, and Silver returns to the future with Eggman Nega who is trapped inside a card.

Sonic Rivals 2 is a platforming game with 2D gameplay in a 3D environment where you race another character to the finish line of each stage, just as the first game. Characters still obtain various power ups throughout the stage to attack their rival. The Boss stages are also the same in that you have to defeat the boss before your rival does. Players still collect cards for completing various challenges. The playable character roster includes all the characters from the previous game (Sonic, Knuckles, Shadow, Silver, and Metal Sonic) along with the addition of Tails, Espio the Chameleon, and Rouge the Bat. There is an added Freeplay mode so that you may play stages previously cleared without having to race against another character. Some additions were made to the multiplayer challenges including Knockout, Ring Battle, Race, King of the Hill, Capture the Chao, and Tag play modes.