Bubble Pooper

You control a small cannon at the bottom of the screen, aiming and firing colored bubbles upward. The main objective is to clear the board by matching groups of three or more bubbles of the same color. You use the arrow keys to aim the cannon and the spacebar to shoot. The bubbles you fire stick to the existing cluster, and when you create a match, they pop away. The game ends if the descending mass of bubbles reaches the bottom line. It starts calmly, but the pace picks up as the puzzle fills. The game feels methodical, a quiet test of your aim and planning under a slowly mounting pressure.