The creator said that there is no Full EE, but it seems off, and I personally believe there is a main EE, but the creator wants it to stay hide as long as possible IDK if there is an EE or Not but at least there are some Side Easter eggs not found already RN as the last edit red skull on maxis room and Security Authentication device seems to be steps with no further explanation

Apported by iwillwinagain5:

If you hit these five buttons, the door across the teleporter opens, and you can collect the "security authentication device". I don't know what it does yet. In Maxis' office there is a safe that looks like it would use a card, but so far no luck.
1. In the conference room with the m1 carbine
2. On the outer wall in the labs
3. Outside the poolroom by widow's wine
4. Wall by bed in Electric Vodka room
5. Left of box location before entering Thompson room

I've also found 3 cymbal monkeys - they just say "hello friend" when you interact, I've thrown monkeys at them and nothing seems to happen
1. In a box on the upper level above the library
2. In the locker in the poolroom
3. In the conference room with the m1 carbine


I've killed about 50 zombies in front of the redskull in Maxis' bedroom and doesn't seem to do anything.

There are also a few radios:
1. Hallway in the lab
2. floor by the Thompson
3. maxis bedroom, left of the glowing skull
4. ammomatic room
5. back of library on a couch
6. Maxis' office on a chest across from the safe

Also, could be something to do with the scenes you see through the teleporter before getting to PaP. I've found 4? So far
1. Conference with Adolf
2. Japanese prison
3. German 115 mine
4. Maxis escaping from Nazi's in a teleporter

Also for anyone new to the map reading this, the teleporter link is upstairs in the first room from spawn, left of the Kar98k.

The cheapest way to power is the door left of kar98K to Maxis's office, then the 1250 door on the left, then the stairs by Bowie knife, then down the stairs to the basement.

Apported by Tomfooler Solved by ProzShadows

Path of Sorrows Katana Quest:

Find three mini lion statues around the map

1. on a closet near double tap
2. in the pile of rubble in the basement labs room with the kar98 (difficult to spot)
3. in a wooden box on the top floor hallway between library and jug room balconies (very difficult to spot)

Now go back to spawn room and near staircase is an opened crate containing the Path of Sorrows Katana Sword.

Apported bt ProszShadows

Also noticed in some fireplaces different symbols (3 maybe if I remember correctly) not sure what its for