The aim of the game is to use the slingshot to match and pop bubbles in order to drop Piggies, clear the top of the level or free trapped Hatchlings. To pop the bubbles, you have to match three or more of them.
There are some obstacles in the levels that can make popping bubbles a bit more difficult. Glass and wood blocks can be broken by hitting them with bubbles, but stone blocks do not take any damage. Cloudy bubbles have to be hit with a bubble to reveal their color. Beware of the spiky bubbles as well, they will break your color bubble! Please go ahead and check out the Blocker Wiki for more details on blockers!
When you begin to play, you start with 5 lives. Every time a level is failed or ended without completing it, one life will be subtracted from your total. Once you reach zero lives, you can’t play for a while. But not to worry! Your lives will recharge in time, and you can also ask for them from your friends, if you have connected the game to Facebook.