The battery key card can be used on the panel in the egg testing chamber , use the key card once to mount the system then click on the picture of the alien to the right (this will light up the room). Then look at the egg chamber, you can now get the egg slime WARNING if you do not take the egg slime right then you will be killed. Put the battery key card in the slot twice to get the print out, drag the print out to the face of the character holding the print out, to read it.. In the lab there is a door that leads to an office. In the office on the desk you will find a CD-ROM ,then turn to the door that you came in and on the right side you can use the panel which will open a secret door. In the secret room you can use the keypad on the middle chamber and the code is MYYRMIDON (the chamber will open and an alien will be placed in your inventory). go out the door on the other side of the room then turn around and on the ground to the right by the door is a pass key card for that door. Now go pass the dead alien and out that door you will be in a chamber with alien eggs look to your right there are grenades on the self take two of them. Backup then go to the room in front of you, you should be in a area where the eggs are in front of you do not backup or you will go up an elevator, go forward and you should be fighting alien facehuggers. Use the grenades on them. After that go back to the secret room there are tubes fill with drugs take one of each. Go to the white counter and on the left side you will see a vent, open it. After you open it then turn the valve by the alien facehuggers one will go in the vent the other is
dead, take it.