In this game you need to help Sonic defeat his enemies so that he can collect power cards.
These battle cards that you collect across each level give you additional strengths and powers so that you can defeat future enemies.
At the beginning you play as Shadow and Sonic teaches you how to play. You also receive 2 battle cards from Sonic to get you going.
Sonic will teach you about attacks and then about using the cards. Enter now and enjoy playing this addictive game!