8 z Fire a shot. You will only be able to fire one shot at a time, so be careful.
8 , Move left. Pressing this key will start you moving to the left, releasing it will make you stop.
8 . Move right. Pressing this key will start you moving to the right, releasing it will make you stop.
8 p Pause or Play. Pressing this will either pause the game, or play it. Remember, you must press it to start the game (either at the very beginning, or between new games).
8 q Quit the game. Do this and you will end the game. No ifs, ands or buts about it.
The mouse controls are active, and rather obvious:
8 Left Move left, as above
8 Middle Fire, as above
8 Right Move right. ditto.
8 Scale A switch that allows for multiple resolutions. 1 for normal resolution, 2 for 2x zoom (the default).
8 BaseColor The color for the Base (you). Default is white.
8 BuildingColor The color for the buildings that shield you. Default is yellow.
8 Vader1Color The color for the highest invaders. Default is blue.
8 Vader2Color The color for the middle invaders. Default is orange.
8 Vader3Color The color for the lowest invaders. Default is red.
8 SpacerColor The color for the Space Ship. Default is gray.
8 ShotColor The color for your shots. Default is green.
8 VshotColor The color for their shots. Default is pink.
8 ScoreColor The color for the score. Default is cyan.
Here's an example of some of the resources you can set (this would be in your .Xdefaults file): Vaders*Font: 9x15 Vaders*Scale: 2 Vaders*defaultfore: black Vaders*defaultback: white Vaders*Vader1Color: blue Vaders*Vader2Color: green Vaders*Vader3Color: red Vaders*BaseColor: cyan Vaders*BuildingColor: yellow Vaders*SpacerColor: gray Vaders*ShotColor: lavender Vaders*VshotColor: orange Vaders*BaseWait: 10 Vaders*VaderWait: 300 Vaders*SpacerWait: 50 Vaders*ShotWait: 10 Vaders*VshotWait: 30