Puzzle Bubble - a classic bubble shoot game

This is the most classic and amazing shooting bubble buster game.
Make combinations of 3 or more bubbles to make them burst. Clear all the bubbles to win the game.
How to play - Don't use the arrows on the bottom, just tap on the game board where you specifically want the ball. There is no witch craft and no time limit in this game, just stick to the game with patience.
Game Features:
1.The bubbles will go down when four balls have been shot so you need to shoot specifically to avoid death
2.Game Center - Your score will submit the high score to global leader board.
When you open the game, it is destined that you can not stop!