Puzzle Bobble GB JPN (No code appears)

In Puzzle Bobble, the player operates a cannon that shoots colored bubbles. The cannon allows you to launch bubbles that stick to the ceiling or other bubbles already present. The goal is to group identical bubbles into groups of three or more in order to make them disappear. The board is finished when the player has cleared all the bubbles. Bubbles are also subject to gravity: when bubbles are no longer attached to the ceiling, they fall and disappear. This feature allows you to trigger chain reactions, and thus earn even more points. Certain bonus bubbles also allow, when touched, to eliminate a large number of neighboring bubbles.