Nanocoptero Defender

How does the game Nanocoptero Defender work?

At the controls of your nanocoptero you arrived at a remote place in the desert where you won't be well-received... Other helicopters, giant fans, land-air missiles and targets will appear on your path, and you have to destroy them if you don't want to get blown up. Sharpen your aim and steer your airship carefully to survive.