RCK2

RCK2 is a single-level PWAD for Doom that was released in 1994. It was designed by Rich Kyanka, and was preceded by RCK.

Secrets

 * 1) On the way to the red key there is a series of rising and lowering staircases.  One section of the south wall here has a slightly different texture - it is a secret door, leading to a plasma gun.  (sector 76)
 * 2) Getting the red key lowers a section of floor behind you.  At the western end of this floor is a yellow key, which can be used to open a secret door next to the red key, behind which is an energy cell pack and a BFG9000.  (sector 97)

Current records
The records for the map at the Doomed Speed Demos Archive are:

Things
This level contains the following numbers of things per skill level: