Look Outside - MASK Ritual Ending (Cursed Mode)

Oh boy, there's a lot of scrounging around for this ending, so here's what you need to do:

For the photograph, you need to go through Mr. Henderson's apartment. In the room where you find Screamatorium, you can use a sapper charge to blow up a normal looking wall where you'd normally find Mr. Henderson asking for rent.

For the painting, you must make it to the underground garage within 5 days. In the hallway with the elevator, take the door on the lower part of it, the one where you meet the pink little mechanic dude. If you have arrived within 5 days, you may go to the left of this room and jump into the pit. You'll meet someone who either leaves in a few days after you meet them, or can be made to leave a little earlier if you give her the rose you get from fully befriending Shadow (the masked guy in the thumbnail).

For the manuscript, you must obtain the unlabeled game from the ground floor. The unlabeled game can be found behind the planet door labeled "29." Then, in the apartment where you fight the Stargazer, you need to turn off the lights, and then enter the meaty room resembling Sam's living room. You may play the unlabeled game on the television in this area.

For the tape, you must first gain access to the elevator. Then, in this exact order, you need to use the elevator to go to floor 1, the ground floor, floor 3, floor 1, and then floor 2 (1, 0, 3, 1, 2). When you enter the elevator again, you should then have the option to go to floor 4.

And the final piece, the one I imagine a lot of people will unknowingly screw up while gathering these offerings, is related to Shadow. You must fully befriend Shadow, or you do not get this ending. That means feeding them the first time you meet them, chatting with them the second time you meet them, giving them a gift in return the third time you meet them, and then letting them stay in your apartment to finish.

The boss gauntlet is definitely harder than Chaotic Quartet into Exalted Four. I wish anyone doing it without Phillippe the best of luck.