The Zero Add-on for Alien Attack in Space has 13 achievements.
Or be killed!
Well, you did your best.
Brave soldier you are!
One man army!
Well, at least they tried...
Don't eat them! This is an alien jellatine!
Kill or be killed, soldier!
We believed in you, soldier!
That was close, alien scum! Ha-ha!
Because you can do it!
What in the world was this guy?
It is raining asteroids, ha-ha!
YOU WERE SUPPOSED TO DESTROY ALIENS, NOT TO JOIN THEM!