A classic Galaxians style game. Aliens come in waves at the top of the screen and start firing down on you. You have one ship and three lives to clear as many oncoming waves as possible. Dodge the raining lazer fire as best you can and pick off the targets above.
This game show off the use of physics to produce a scrolling starfield background and animations to bring the alien wave formations in. There are three different alien type with slightly differing hit requirements and firing rates.
This game is played with with keys. Left and Right arrow keys to move your ship and space bar to fire.