Type jassica16 or jessica16 during gameplay to enable cheat mode. Then press F10 to get all the good weapons ammo and items. Press Ctrl F10 to become Invincible.
Various Starting Parameters
Type any of the following "Parameters" at the command line:
|asylum||Start Up Says "Running Enhanced Mode NOT"|
|skill x or skillx||Set Default Skill to 14|
|warp x or warpx||Warp to Mission x|
Hold Shift and press H. Continue to hold shift and drag with the cursor.