Abuse Cheats

Unlock god mode:)
Begin the game with the -edit command line parameter. Place your pointer in the game window and push SHIFT + Z, then push[Tab] when you want to begin the game.

Get unlimited ammunition:)
This cheat code requires you to edit a game file. When editing game files make sure you create a backup copy for that particular file before preceding.  Use your text editor to edit the "lisp\options.lsp" file in the game folder. Enable mouse weapon switching in the file. Choose any weapon other than the laser. Press and hold the Right Mouse Button when attacking with that weapon and the ammunition counted for that weapon will be taken from the weapon on the left side.

Restore your health:)
When you save your game, immediately reload that game. When the game resumes your character will have 100% of his health.
User Cheat by Dallas21Lineman