Introduction - If you have any usage issues, please Google them yourself
1, in the interface can display a moving object [such as airplanes, balls, cars, etc.]. 2, in the bottom of the interface has a cannon. 3, can use the keyboard left and right keys adjust the launch angle of artillery. 4, using the space bar to launch artillery shells. 5, you can determine whether the hit the target. 6, the start of Game asked to enter user name, score and record. Can also fire multiple bullets, hit the target can also see the effect of the explosion