The Titan Anomaly

The Titan Anomaly is a single-level PWAD for Doom II that came out in 1995. It was created by Jim Flynn.

Secrets

 * 1) The blue key platform counts as a secret and is impossible to miss. (sector 48)
 * 2) In the north is an S-shaped building. Inside the building, as you approach the centre of the S, you will see windows on either side. It is possible to jump out of the eastern one onto the ledge to the south. The eastern wall of this ledge is a secret door leading to a megasphere. (sector 92)
 * 3) The south-west corner of the inside of the S-shaped building has a section of wall with a red banner panel. Pressing this panel lowers the wall to the north, allowing access to an outside ledge leading to a platform with a rocket launcher. (sector 14)
 * 4) In the north-west room before the exit (with the walkways over the water) are three circular buildings. The north-west one has two alcoves, one of which contains a soul sphere. This can be lowered by pressing it. The back wall of this alcove is a secret door leading back to the walkway. (sector 309)
 * 5) The alcove immediately opposite the exit has a secret door leading to a heavy weapon dude, a computer area map (not on easy skill) and a lift back to the room south of the walkway room. (sector 316)

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

Player spawns
This level contains five spawn points:
 * 1) facing south-east. (thing 423)
 * 2) facing south-east. (thing 424)
 * 3) facing south-east. (thing 425)
 * 4) facing north-east. (thing 426)
 * 5) facing south-west. (thing 427)

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