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Duke Nukem 3D Hints
Where is the red card?
1 of 4: The red card will open the door across from where you found the blue card.
2 of 4: First, open the doors at the first subway stop.
3 of 4: Find the stairs at the first subway stop, and go up.
4 of 4: Make your way through the eggs, and you'll find the card at the top of the steps. Just watch for the Battlelord!