Stun The Koala

This is a puzzle type of casual game
The farm has been drilled by koala and other animals a lot of east, now we guard the hole, only wait for koala out of the hole, we hit the koala can score, if hit other animals are reduced points, before the end of the countdown to reach the target score can be upgraded, go to the next level
The game has several levels of different difficulty, come and try it together