Go to Jade World and interact with the Kingfisher head in the ground.
Ground Cherry/Lantern Edit
Go to Wall's World and enter the door on one of the walls. Interact with the ground cherry growing out of the wall. Interact with the giant ground cherry in the Ghost Lantern Area.
Go to Jade World and enter the blue building. Avoid the chaser inside, then climb down the ladder to the City. Enter the door with a green sign over it and blood splatters nearby. It will lead you to a room with the Erhu in one of the corners.
Go to Wall's World and enter the small, green building. In the Brown Staircase, walk to the left exit to enter Monochrome World A. Find a staircase that brings you to the Monochrome Staircase. Find the exit that takes you to the Dragon. Enter the Dragon's mouth and take either intestine path. In the Intestine Maze, make your way to a hole that takes you to a podium. Interact with the cyan orb to gain the Dragon effect.
Hair/Long Hair Edit
Go to Hair World and enter the tunnel made of hair. At the crossroad, go to the right path to enter the Hair Slum. Keep going right until you find some hair at the end of a ledge. Interact with the hair to gain the Effect.
Kuroko/Stagehands Outfit Edit
Go to Water World and find the entrance to the Playground. Go down the stairs, then go into the grey building to reach the Sewers. Find a room with two silhouettes. Interact with the white silhouette, then interact with the black silhouette.
Go to Dark World and use the Ground Cherry/Lantern Effect to light your way. Go between the two square pillars. Avoid the chaser and interact with the green triangle to be teleported to the Desert. Take the right path between the foliage and then go south to find the sand man. Interact with him to gain the Effect.
Follow the guide for the Dragon Effect. In the Monochrome Staircase, find the exit to a spiral path. Interact with the black grass to be teleported to the Bug Forest. Interact with the bug on the ground.
Follow the guide to Hair/Long Hair Effect. At the crossroad go down to the Snow World. Find a hole in the ground and interact with the sleeping fox to gain the Effect.
Sea Turtle Edit
Follow the guide for the Dragon Effect. In the Monochrome Staircase, find the exit that teleports you to the unreachable mural in Hair World. Interact with the robed NPC and then interact with the sea turtle.
Follow the guide for the Kingfisher Effect. In the City, go south to the train station. Enter the door with no sign above it and interact with the robot on the bottom. Go back to the station and ride the train. Exit once the train has stopped. In the Parasite Forest, keep going south until you find a giant parasite. Interact with it to gain the Effect.
Go to Cone World and find the door that brings you to the Pink Path. Interact with the red, cracked pillar to teleport to the Street. Go straight north and find the entrance to the Mask temple. At the fork in the road, go left and interact with the masked ghost.
Go to Water World and go north to interact with the gravestone. Go through Crow's Path Way, then go through the Tengu Torii. Go north until you reach a house. Go into the house and interact with the glowing orb.
Halo/Angel Hoop Edit
Go to Dark World and find two lances, go between them warp you to a place with chasers, avoid it and go to the Desert. Go to the west side desert and go between the fences that bring you to the Village. Go north to the ghost town and enter the Dark Department on the right. Find a room with a glowing hoop in the middle of a black circle on the floor. Interact with it to Gain the Effect.
Go to Wall's World and enter the small, green building. In the Brown Staircase, walk down to the left exit to enter Monochrome World A. Go to south west and enter the white cave. Interact with the red eye.
Ghost Fire/Soul Edit
Go to Water World and find a entrance to the Playground, go down the stair, go left and enter the door to the Docks. Go up and find a door that brings you to the Green City. Find a hole in the wall the leads to the Flooded Underground. Go to south east to the locked door, use Long Hair effect to break it, then go to the bottom entrance, the Ghost Fire effect is in the room.
Go to Hair World and find six parallel murals. Walk between them to teleport to the Ancient Path. Walk right to the Dungeon. In the Dungeon, make your way to a grass bridge. Walk across and interact with the circular pillar to gain the Effect.
Sleeping on Yomika's Dream World bed will have a chance to transport you to the Inner City. Make your way to Train II and hop on the train. Exit once the train has stopped and interact with the stone spire. Once in the Oni Field, enter the hole and interact with the red oni inside to gain the Effect.
Follow the guide for the Kingfisher Effect. In the City, find a door that takes you to Monochrome World B. interact with a jellyfish that warps you to the Aquarium. Enter the stairs surrounded by burnt pillars. Interact with the giant spider.
Follow the guide for the Spider Effect. Exit the Aquarium to the Moss area. Enter the Dusty House, climb to the second floor and enter the right door. Interact with the mildew pile.
After you got all 20 Effects, a door will appear in Yomika's dream room, next to the balcony door. Behind it is a room that contains 20 stands that let you drop your Effects in order to achieve the endings. Each stand corresponds to the arrangement of Effects in your menu (i.e. Kingfisher to first stand, Hair/Long Hair to second stand, and so on.) After dropping off all the Effect, wake up and go down the ladder in Yomika's room to see the ending.
To unlock Ending 1, you need to see all 20 Events. For this ending, the crystal to the right of the ladder will be removed.
To unlock Ending 2, you need to see less than 20 Events (meaning that if you want to see it, it must be achieved before you see all 20 events.) For this ending, the crystal to the left of the ladder will be removed.
There are a total of 20 Events in the game. These determine the ending you will receive. You can see how many Events you witnessed by checking Event Progression in the Effect Menu. Each Event adds 5% to the Event Progression. When it reaches 100%, Ending 2 becomes available.
Monochrome Graveyard Edit
In Monochrome World B, there is a monochrome graveyard and a sleepy man face scenery. Interact with the grave and it will change the man's face.
Sea Anemone Edit
Between the Aquarium and Moss, there is a small hole that has a big sea anemone. After seeing the sea anemone Yomika will be forced to wake-up.
Secret Scenery Edit
Follow the guide to the Spider effect. Use the Hair/Long Hair Effect on the cracks behind the giant spider.
Tengu Flight Edit
Walk to the right from Moss will come to a gray building, go through many rooms to the rooftop, where you can have a flying event like Yume Nikki's Witch Flight by using the Tengu effect.
Port Shadow Edit
There is a random event in which a shadow appears at the ocean scene in the port.
Guard Room Edit
There is a random event which the guard room in the dark forest becoming messy, and on the top has a hole that can leads you to the train track with the guard's dead body.
Chaser Mirror Edit
Near the Pillar Effect in Dungeon, there is a room that has a chaser in a mirror. When Yomika try's to leave the room, a chaser will pop out from the mirror and go into Yomika's body.
Turtle Swimming Edit
Go to the exit of the Blue City will come to a sinking rooftop like gray building. Using Sea Turtle effect can have turtle swimming event.
Boy in the Playground Edit
There is a random event which a boy sitting at the swing. He will not appear again after you killed him.
Scary Face Poster Edit
There is a random event which a laughing scary face poster appears at the alley in playground. Using Long Hair effect will make it opens its mouth and can lead you to the Aquarium.
Clock Tower Edit
Go into the first door under the playground leads you to the clock tower. You go by elevators and interact with the clock on the top will start a full screen event.
Yomika's Dream Room Edit
Go into the big hole in the Hell will lead you to Yomika's Dream Room. Go down the cave and go right until you see a dead chaser, Yomika then will start to cry and be forced to wake-up.
There is a place at Flooded Building's exit that has a broken stairway. You can use the Tengu effect to fly over the broken way to the Moss.
Eye in Flooded Building Edit
There has an eye appearing when you go out to the Breakdown from the Flooded Building. There also has a random chance that it becomes bloody when you enter the Flooded Building.
Dark Apartment Rooftop Edit
When you arrive the top of the Dark Apartment, a chaser will stand by the gap in the fence. Interact with it to make it push Yomika down to the cage full of chasers.
Locked Door in Dark ApartmentEdit
There has a locked door in Dark Apartment, you can use Long Hair effect to open it, then you will find a place that similar with Break Down scenery in Flooded Building but has a X sign door block your way.
Transform Into a Chaser Edit
There is a place with a huge hole which between Village and Teleport Temple where you need to use the Bug effect to enter. Go into the huge hole, Yomika will be transformed into a chaser and won't be able to use effects. You can only leave this place by waking up.
Teleport Temple RooftopEdit
You can find a square hole in Teleport Temple that will pop out a full-screen of face if you interact with it, then there will appear an elevator that leads you to the rooftop to see the sky scenery.
Deadly Cactus Edit
Follow the guide to the Sand Effect. Take the north path between the foliage and interact with the gravestone. There is an area which has a big cactus with eyes. If you try to leave, Yomika will be stabbed to death with cactus needles and will be forced to wake up.
Monochrome Girl Edit
Follow the guide to the Eye/Ocellus Effect. Enter the stairs in Monochrome World A. Find and exit that takes you to a gray house. Use the Hair/Long Hair Effect to kill the monochrome girl. After killing her, a door appears in the wall, leading to a room with a monster. The screen will start static and you'll be forced to wake up.
Follow the guide to the Dragon Effect. Inside the Intestine Maze, find a hole that takes you deeper into the maze. Entering the area with a large tumor. Trying to leave the area will cause eyeball monsters to appear and start chasing Yomika. After every single eyeball monster touches her, she will warp to the Dragon's stomach and be digested. She will be forced to wake up.
Follow the guide to the Oni Effect. In the Oni Field, enter the archway that will teleport you to a sunset pathway. Go right until you find a hole that can only be entered with the Bug Effect. In there, you will see a crying chaser if you look down.
Shadow Eye Edit
Go along the Ancient Path and enter the Dungeon. In the first level of the dungeon, keep towards the upper path until you find an exit that returns you to the other side of the Dungeon entrance in the Ancient Path. Keep going right to find the Shadow Eye.
Balcony Rave Edit
Interact with the statue that sometimes appears on Yomika's dream balcony.