Half-Life: Blue Shift/Cheats

Follow these steps to activate cheats in the game. Then enter any of the following;
 * 1) Use the ` to show console
 * 2) Enter


 *   - enables you to become invincible
 *   - enables you to walk through stuff
 *   - enemies cannot see you
 *   - gain all guns and max ammo
 *   - changes the gravity setting (default # is 800)
 *   - set acceleration of player (default is # is 10)