Puzzle Bobble

You control a small cannon at the bottom of the screen, aiming and firing colored bubbles upward. Your goal is to clear the screen of all the bubbles hanging above you. You do this by matching three or more bubbles of the same color. When a group connects, it pops. If you detach a whole cluster from the ceiling, it falls away. The game starts calmly, but the pace picks up as the ceiling slowly descends. Missing your shots lets the mass grow, and a wrong move can quickly corner you. It feels like a quiet, focused race against a creeping wall.