Alien Syndrome

The time bomb has been planted. It's the only sure way to get rid of the aliens. For good. They are hideous. Vicious. And villainous. And they have infested our Outcolony. They are holding hundreds of residents hostage. Some of them are your friends. So get in there. And fire away. Inside you'll find state-of-the-art weapons. You can take them. There's one sector after another to clear. Each one is more complicated than the last. And there are super aliens to fight. Each one more hideous than the last. Get the hostages out. And grab as many aliens as you can. Before the explosion gets you all.