Stupid Zombies 2 apk is a casual game. Players need to face a lot of obstacles to block, the goal is to hit all the zombies to pass. The game is very much closed, don't worry too fast. And the difficulty of the back game will gradually increase, it is not easy to play.
The main skill of crossing is to use the rebound of the wall and the box to crush the zombies. The position of the rebound is not easy to find. This can be tried several times. Don't make a second shot when a bullet does not disappear. In case the first bullet can rebound to kill other zombies, this will result in a mistake. If you feel that you can't aim to find a straight line than on a mobile phone, you can have a physical aid. If you don't go to any level, you can use the skills in the lower left corner and one skill to kill all the zombies.