Kat

Kat is a single-level PWAD for Doom, designed by David and Kathy Bruni in 1994.

Secrets

 * 1) Head north from the start. The corridor has a secret door to the west leading to a megaarmor and a partial invisibility. (sector 69)
 * 2) Directly opposite #1 is another secret door leading to six health bonuses and a box of bullets. (sector 71)
 * 3) Directly west from the start is a secret door leading to a passage with three shotgun guys, which leads to another part of the level. (sector 37)
 * 4) Heading north from the end of #3's passage leads to a door to the room west of the chaingun room (this door can be opened from either side). (sector 40)
 * 5) Head west through a door from the room north of #4. There is a secret door to the south leading to a passage with four shotgun guys that leads to the far south-west of the level. The doors at both ends of this passage count as separate secrets. (sector 142)
 * 6) See #5. (sector 144)
 * 7) To the north of the chaingun room is a secret door leading to an area with 16 demons, a spectre, four cacodemons, a partial invisibility, a chainsaw, two medikits, and three boxes of rockets. The pool in the centre is a teleporter to the maze behind #8. (sector 160)
 * 8) From the exit, head back to the T-junction and turn right. There is a secret door on the south-west wall leading to a maze. (sector 98)
 * 9) One of the paths in the aforementioned maze has a secret door leading to an area with a radiation shielding suit and a teleporter to the area south of #4. (sector 194)

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: