When the player pops/drops more than 3 bubbles, more than 3 will be added to the bubble bar as an added bonus.
In the bubble bar 7 small bubbles will merge into one large bubble.
Each time you use a bubble, use the top 1 (large or small bubble).
When you use bubbles on yourself (or your partner), it creates a defensive effect, and you (or your partner) eliminate the corresponding bubble (1 bubble, 7 big bubbles).
When a bubble is used on a non-partner, the attack effect is generated, and the other party adds the corresponding bubble, [1 small bubble, 7 large bubbles].
Every time a certain number of bubbles are eliminated, a + 1 attack is launched against all opposing players.