UFO Attack

While relaxing and watching the beautiful view of the city of Rio de Janeiro, Brazil, suddenly the silence is broken by loud droning sound from above.

Out from the sky above came out a flying saucer, an UFO. And, not just one UFO but many UFOs follow suit. It is a swarm of UFOs circling down on us!

Then it strike our minds that we are under UFO attack!

Quick! Get your gun and start shooting! It is either you defeat the aliens or the aliens will get you!