Stargate

HIDDEN MESSAGE: Accessing programmers screen credits: 3 combo trick (must be done while game is playing. Also, each combo must be done within 1Ì4 seconds of each other!):
1. DOWN+REVERSE+1P START+THRUST
2. REVERSE+2P START+FIRE
3. DOWN+1P START+THRUST+FIRE.

Secret “zowie” bonus – Kill all the Landers except one. Let it capture a humanoid, then shoot it, letting him fall. Catch him just as his feet touch the ground and the screen will black out for a second, then re-appear with a burst of colors and a bonus of 2,000.

Entering the Stargate with 4 or more humanoids will warp you ahead 4 attack waves; however, warping is not allowed after wave 13.

On the Firebomber showdown (every 10 waves), if you press hyperspace as soon as the ship appears, the pod intersection will be in the middle of the Firebombers. Because of this, it will only take 1 or 2 smart bombs and a little firepower to clear the wave. {Michael LoMarro}

BUG: If you hit hyperspace at the same time you enter a stargate, and then again the instant you reappear, the terrain will move to the center of the screen and start scrolling quickly!