Getting the Red Key / Getting to the Red Key Slot (2)

In the Security Access area, you will be attacked by a Pig Cop immediately. Around the corner, two Enforcers guard Pipebombs, a Jetpack, and a Large Medikit.

Enter the right of the two non-Blue Key doors first. Kill the two Pig Cops inside and collect the two Laser Tripbombs and a Large Medikit on top of audio equipment on the desk.

Go to the room across from the audio equipment and use the device with two reels to open a door to the right, granting access to an Atomic Health pickup (SECRET 3).

Proceed to the Prison Cells area after the Blue Key door. This area has an acid bath with two Octabrains and two prison cells containing Slimer Eggs.

The right cell holds Pipebombs and a Large Medikit. The left cell contains Devastator Ammo.

In the other part of the Prison Cells room, a Commander is located behind a cell door. Defeat the Commander, open his cell door, and enter a room filled with Slimer Eggs, where the Red Key is located.

Return to the Offices area.

Across from the top of the first Blue Key door you opened, there is another Blue Key door. Enter this room to face an Enforcer and a Pig Cop.

Collect the Large Medikit on the counter to your left and the pistol near the photocopier.

Further inside, find another Large Medikit in a file cabinet drawer and Shotgun Shells on top of it.

You will find a Red Key door in this area.

Near the file cabinet, a bookshelf can be opened (SECRET 4). Follow it down to an area resembling an execution place, containing an Atomic Health and three Chaingun Cannons.