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Duke Nukem 3D Hints
Where is the red key card?
1 of 6: The red card will open the second safe, but it's inside the first safe, beyond the cogs.
2 of 6: Once you get inside the safe look at the circular platforms.
3 of 6: Those platforms cause the cogs to move.
4 of 6: Jump on the platform, get in a cog, jump on a platform again, jump out, hop into the next cog, etc., until you find a passage in the corner.
5 of 6: While this cog in the corner is moving, jump out onto the platform.
6 of 6: Go inside, and eventually you'll find the card you need.
