OMORI
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All Key Locations - Text Guide
By tetra-byte
The locations for all the keys and in what order you can obtain them in. Spoilers are tagged, so feel free to check it out!
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Section 1 - Prologue
Location - Vast Forest

A - In the grass near a stump.

This one is the easiest, of course. The first one you can find. Follow the red steps near the stump and you'll find the key.

Image![i.imgur.com]

B - On a shrouded old bridge.

While you are looking for Basil, you'll come across a large bridge that connects the forest to the train station. On the middle of this bridge (straight) you'll come across the key.

Image![i.imgur.com]

C - Between giant pinwheels.

In the forest on the right side's first transition, up in the top right location there is a ladder that heads up to where Kite Kid is. The key is up there next to him.

Image![i.imgur.com]

Location - Otherworld

D - Near a castoff cartridge.

After acquiring the cartridge for Capt. S Space Boyfriend, you need to enter a bin near the location and go up the ladder and back outside to acquire it to collect this key.

Image![i.imgur.com]

E - Underneath a wet pillow.

You will get this key during the story. After fighting Capt. Spaceboy look underneath his pillow.

Image![i.imgur.com]

Location - Otherworld Story Instance

F - Within a large frame.

You will get this key during the story while trying to catch up with the sillouhette of Basil.

Image![i.imgur.com]
Section 2 - Three Days Left
Location - Pyrefly Forest

H - In a lost pyre's flame.

On the right of the waterfall, you need to navigate a very small path to find your way through the spider puzzle and lost wood puzzle to get it.

Image guide![imgur.com]

Location - Dungeon

I - Lying in a dark cell.

While escaping the Dungeon, you'll eventually find a button that unlocks spikes in front of a cell. In that cell there is the key.

Image![imgur.com]

Location - Castle

J - Trapped in a pink cage.

While solving everything in the castle to disperse the crowd, you must enter the kitchen. Above the minigame in this room, you can enter the bedroom area. The key is in a cage in this area.

Image![imgur.com]

K - In a hall of framed faces.

While solving everything in the castle to disperse the crowd, you must enter the art gallery. The key is inside this room on the top right.

Image![i.imgur.com]

Location - Sprout Mole Town - Stage

L - Far below a big stage.

You will collect this key during the story.

After defeating Sweetheart, jump into the pit on the stage to continue the story. It will be toward the end of the Lost Library that you end up in.

Image![i.imgur.com]
Section 3 - Two Days Left
M - Spending time with a frog.

You will collect this key during the story.

After overcoming your fear of drowning, the key will be inside of the wormhole that Mari leaves when she disappears into the window/curtain.

Image![i.imgur.com]

Location - Casino

N - Near a game of roulette.

This one is simple. Once you enter the casino for the first time, it's on the left side of the room next to the machines.

Image![i.imgur.com]

O - Amongst other O's.

Outside of the casino on the right side, there is a haunted pool (underwater??? yes.) Enter the pool to be transported to the ghost party.

You can pick up the ghost quest here too, which you have probably seen things for around the world already.

The key will be in the bottom left of this area, amongst the several other floating O's.

Image![i.imgur.com]

P - In a water closet.

On the first floor of the casino enter the Men's toilet on the first floor.

Image![i.imgur.com]

Q - In a small moving room.

You will collect this key during the story.

It is in the elevator going to the boss.

Image![i.imgur.com]

R - At the end of a plank.

After re-acquiring Aubrey, go to the 4th floor and enter the room on the right. Continue forward by going behind the mustached ghost. From here, go up as far as you can, using Aubrey's ability as you go up higher and higher. Eventually, you will climb a ladder to acquire the key.

Image![i.imgur.com]

Location - Highway

S - Within a live shell.

You will see this key during the story. To acquire it, make you way across the highway (through either paying ~7500 clams or going around each section) and it is inside the clam at the end.

Image![i.imgur.com]

Location- Humphrey

Sublocation - Top Tunnel/Marina's Section

T - In a bubbly tank.

You will have the chance to collect this key during the story through either a challenge or time.

Challenge: During the chase sequence with her 667th experiment progress normally and then hit the tank with Aubrey. Afterwards, quickly switch to Omori and collect the key. You do not have to outrun the experiment, as after you collect they key and respawn you will keep it.

Time: At the end of the Humphrey section, he will spit the key out with you.

Image! The T key will be here with W if you did not collect it with the challenge.[i.imgur.com]

Sublocation - Right Tunnel

U - Surrounded by Goo

Found on the water slide to acquire it, take the path going left, twice.

Image![i.imgur.com]

Sublocation - Left Tunnel

V - Caught in a steel trap.

Found on the conveyer belt bomb puzzle. This is the third puzzle and is found on the left path.

Image![i.imgur.com]

W - In the gut of a whale.

You will acquire this key during the story.

Will be acquired after killing Humphrey.

Image! The T key will be here with W if you did not collect it with the challenge.[i.imgur.com]

Location - Dino's Dig

X - At the end of a map.

Found on the third floor in-front of the wishbone in the bottom right corner of this floor.

Image![i.imgur.com]

Section 4 - One Day Left
You must be on a Hikikomori Route to get these keys! To do this, do not answer the door any day as SUNNY.

Location - Otherworld, near the Sno-Cone man.

G - Beneath a trap door.

To get this key, you must acquire batteries from Space Boyfriend's father. Then, take the batteries to the fish in the Igloo.

Image![i.imgur.com]

Y - In a field of winter snow.

After acquiring the G key, go to the top right of the map. The key will be right before you enter the snowglobe area.

Image![i.imgur.com]

Location - The Abyss

Z - Past the end of the road.

Near the end of the road by Deeper Well, talk to the Hitchhiker to acquire this key.

Image![i.imgur.com]
What Keys Are Required? (Spoilers!)
If you want to know what keys are the only ones required to solve the puzzle to avoid getting any marks on your hangman, here they are:

Prologue: A, B, C, E

Three days left...: K, L

Two days left...: M, O, P, S, T, W
Special Thanks!
Thanks to:

HUGE INCREDIBLE THANK YOU TO SNAGGYTOOTHY! They sent the locations for the G, Y, and Z keys, along with pictures for EVERY single key!
33 Comments
Pigeon 5 Jan, 2021 @ 5:41pm 
You can go back to Humphrey on One Day Left in the Hikikomori route after you get the check from Mr. Jawsome. As for Sweetheart's castle I think you're locked out of that one.
Ashli 5 Jan, 2021 @ 4:03pm 
How do I get the keys that Humphrey still had in his stomach(The U key and something else I think) and how do I get the key(s) that were in sweethearts castle after you demolish it(If possible) I don't see this mentioned at all
ラゲアス 3 Jan, 2021 @ 2:37pm 
So glad I decided to check here, I was gonna go crazy searching for G Y and Z
tetra-byte  [author] 30 Dec, 2020 @ 5:03pm 
@The Pigeon Lord
Thanks a bunch!

This guide is fully complete on locations now :)
Pigeon 30 Dec, 2020 @ 12:10pm 
Spoilers on location for Y and Z keys as well (you need to take the route I mentioned in the previous post) Y key is right before the snowglobe area top right of the map after you leave the igloo. Z key is in The Abyss (you get there from the hitchiker guy on One Day Left near the end of the road (by Deeper Well.)
Pigeon 30 Dec, 2020 @ 12:06pm 
Hey TheIndieBoy You'll need to be on the Hikikomori route to find the G, Y and Z keys. Route opens if you don't open the door for Kel on Three Days Left. Black space should be different near the end and you should be able to go back to the dream world on One Day Left in order to talk to Captain Spaceboy's father. From there give the batteries to the fish in the igloo.
TheIndieBoy 30 Dec, 2020 @ 10:13am 
Don't know how to get the G key, any help on that ?
표수진 (Snaggy) 30 Dec, 2020 @ 2:16am 
Hi, I got all the screenshots for the keys + know where to find them. I wanted to ask if I could send them to you via email! I've sent you a friend request too, just in case.
Pikablooo 29 Dec, 2020 @ 3:35pm 
Idk if you have this, but the X Key is on the third level of Dino's Dig in the Orange Oasis, right in front of the wishbone in the bottom right corner. In the upper level of sand surrounding the Dino's Dig pyramid, you will find a treasure map that provides a diagram of this as well!
tetra-byte  [author] 29 Dec, 2020 @ 1:34pm 
@CapitanTocino

Really there is, there's like 86 some-odd achievements IIRC. There's still a lot to explore that I haven't really seen and probably a lot of things that we still have to find!