Activate the following cheats by entering the corresponding codes:
CHEAT FUNCTION - CHEAT CODE All weapons - comeandhaveago or weapontastic Unlimited ammo - ifyouthinkyouarehardenough Multi-player full energy - theironlady Single player full energy - takeonallcomers All cheats enabled - ripleydoesitwithbigguns Level select - jumptolevel<level 1-34> or nadiapopov<level 1-34>
Locate all of the ID Tags you get from the security guards. Get rid of them with the pistol. They will drop 9mm clips if you need ammo. Once you have found all of the tags, find the battery in the blue lit room with some alien warriors. Use the shotgun to dispose of them, then return to the room where the security guards are. Power up the left one, then the battery console. It will not say "Lift Activated", but when you go into the chestburster room it will display. Return to the start of the level where you encountered the first warrior. You will see a number of things. Shoot the facehuggers down with the pistol or flamethrower. You can pick up a pulse rifle, TAG, flamethrower canister, shotgun, and armor.
At the end of every episode, you have to eliminate the strongest alien in the game. You will find her in the egg chute. This is where she is best left. First, use any gun to take care of the eggs and facehuggers. After the eggs are destroyed, shoot the Queen's chute to bring her down. The battle requires plenty of ammo. Use the heavy weaponry such as the pulse rifle and smartguns. She will eventually die and you can move on to the next level.