This bubble-themed duel game pits you against a computer to see who will reign supreme! Use the W, A, S, and D keys on your keyboard to play this game. Use A and S to move left and right on the bottom of the screen. You will see what color orb you are going to fire next. Push the space bar to fire it. You want to connect it with other orbs of the same color, because they will disappear once you get four or more of them together. Cards will randomly fall from exploding orbs, and you want to collect them to do special attacks.