I found out what it is, so if you don't want to get spoiled stop reading because it's not that hard...
SPOILERS: It's hard to explain because the password changes sometimes, I'm not sure what triggers it, but from what I've seen it's one of the two words: "thingsarelookingup" or "nickk", even if you try both you should keep switching between the 2 and you'll find the (what I believe) is the console of the game. Maybe you can enter something so you can look up? Or find out one the "secrets" the creator Nickk was talking about?