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Duke Nukem 3D Hints

Where is the blue keycard?

1 of 4:
If you haven't gotten the red keycard, then don't worry about this.
- Where is the red keycard? Where do I use it?
2 of 4: After you extend the ramp, kill the enemies in the dark room.
3 of 4: The blue keycard is on the control panel at the other side of the dark room.
4 of 4: Use it to open the "center" of the large room.

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