Privateer 1 (PC)
Hitting Alt-O will open a screen that allows you to test out the ships Capabilties without much fear of destruction. Unlimited ammo, joystick calibration, invulnerabilty (GOD MODE) are a few of the options that are available. Be careful when using this "cheat" though, if you are either flying a mission (cargo or plot) and you go into this option screen to save yourself, the mission is considered a failure and if you are on a plot mission, you are basically screwed. You'll need to go back to a saved game (hopefully you remembered to save!) and start from there. Bounty missions are different, apparently they are unaffected by this option (sometimes getting rid of a mission is good, you can only "hold" three missions...not including plot missions). You can get into this mode at any time, even while flying.