Click Play in the middle of the bottom of the screen. You can then decide whether you want to go to North America, South America, Africa, Europe, Asia or Australia. Once you decide, click that continent. Regardless of which continent you choose, your goal will be to shoot everything that goes across the screen.
If you select Africa, that will include elephants and dragonflies. After using your mouse to aim at a target, you can click its button to fire. Once you have taken ten shots, you will need to press your spacebar to reload. As the time ticks down, you will get points for every successful shot you land. Your goal is to take out at least 10% of the targets that go across the screen.
LEFT MOUSE CLICK: Shoot