If you're having trouble clearing a level, why don't you use the pop-up booster shown in the ready pop-up?
โ๏ธ Bubble ball
When this ball hits the floor, the bubble surrounding it disappears. Therefore, it is a ball item with 2 lives!
โ๏ธ Flame ball
When this ball hits a brick, it removes two lives from the brick.
โ๏ธ Bomb ball
When this ball first hits a brick, it multiplies by two.
(2 balls are added to make a total of 3 balls including the basic ball)
โ๏ธ Ghost
If you use this booster item, all ghost bricks in the level will turn into regular bricks for one round.
โ๏ธ Reward
If you want to add 5 more regular balls, watch the reward ad and see how many balls were added during a round!
๐ Every booster ball you get is in addition to your regular ball count.
= number of regular balls (+ number of booster balls)
Since the reward item provides regular balls, it is exposed as the final summed number of regular balls.