Bust-a-Move 3 is the third game in the Bust-a-Move series of matching bubbles. The goal of the game is to clear the playscreen by matching sets of three or more bubbles using the pointer launcher.
Instead of having the ceiling lower the bubbles as the game progresses, Bust-a-Move 3 employs a series of nodes that have bubbles suspended from them. When a node is completely cleared of bubbles, it disappears. The stage is cleared when all of the nodes have been eliminated. New stage designs have also been introduced to vary gameplay, including an endurance playfield that is several lengths of the screen in height. Rainbow bubbles have also been introduced, which will change colours when a nearby bubble is burst.
A two player versus mode is included that allows players to face off against each other to determine who can clear their screen faster.