Alien Portal

Aliens are coming out of the Portal and attacking your spaceship. You have to shoot the aliens several times to destroy them.  Each time your ammo hits them it shrinks them, eventually killing them.  If even the smallest alien hits your ship, your game is over. 

The score is set at 10 when the game begins.  If you fail to hit any aliens in this amount of time, your game is over (Out of Time message displayed).

To play the game: use the mouse to point to the target aimed at and use the spacebar to shoot the target.