It is a very interesting shooting game. If you have nothing else to do, or if you just want to relax yourself by playing some relaxing game, you can definitely try this one. It is very easy for you to handle this game. All you need to do is to aim at your target and release. At the beginning, you have a regular gun. 

But after you play for some time, you will get more sophisticated guns to deal with your enemies. It is so nice to take down your enemies with the awesome guns. The thing is that while you are trying to kill your enemies, you must make sure that you will not be destroyed by the bullets which may bounce back right at you. So this is a very dangerous game. 

Usually, you have three bullets. And if you run out of bullets and your enemies are still alive, you will lose the battle. Of course, your enemies are also armed. If you fail your task or if you wait for too long, your enemies may take you down by taking the advantage. So there is basically no bullets for you to waste. 

You must try your best to kill all your enemies with the minimum amount of bullets. It would be the best if you can kill all the enemies by using only one bullet. The good news is that you will enjoy yourself a lot while you are trying to annihilate all the enemies with one strike.