Destroy brown balls which are the center of the gravity. Destroy them via clicking on them or, buy other balls to fight for you. Merge your balls to make them stronger, buy upgrades to give them new abilities idle game, gravity breakout, clicker game, ball game, merge balls, upgrade game, gem game, 2D game, mobile game, free game, strategy game, addictive game, destroy balls, power-ups, clicker, leaderboard, upgrade, gems, merge, idle clicker, mobile gaming