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Effect eggs in the Nexus.
The effects as they appear in the manga.

There are 24 proper effects in Yume Nikki (not including the Instructions). Each effect changes Madotsuki's appearance and some provide special abilities.

Gathering all 24 effects is considered to be the primary objective of the game, and only when all effects have been gathered can the player see the game's ending by leaving them all in the Nexus and waking up.

The effects are scattered throughout the dream world, and some are easier to find than others. Some are found by touching particular objects whereas others are received from interacting with certain characters.

While most of the effects are purely cosmetic, there are a few events and locations that are unreachable without them. They can be collected in almost any order, except for the Poop Hair effect, which requires either the Yuki-onna or Umbrella effect first. It is also recommended to get the Lamp effect before attempting to get the Knife or Witch effect, which both require traversing dark areas before getting them.

Descriptions and names in this article are given in the order of fan translation first, official translation second (if different), and original Japanese third.

Effects

Frog

(かえる)

Frog.png
Frog Egg.png

Become a frog / Transform into a frog.

Appearance: Madotsuki transforms into a humanoid frog, walking with a hunched-over back.

Passive Effect: Madotsuki walks at normal speed through water.

Action: (1) Madotsuki hops in place like a frog.

Location: Either Forest World or Dense Woods B (Frog Path) - Interact with the Frog.

Practical Uses: Walking through the Pink Sea and Uboa's Trap is much faster, although the Bicycle does the same thing.

Umbrella

(かさ)

Umbrella.png
Umbrella Egg.png

Open an umbrella / Use an umbrella.

Appearance: Madotsuki holds a red umbrella.

Passive Effect: It rains, which continues until Madotsuki unequips the umbrella into her normal form. The rain also enables the Demon effect to produce a clap of thunder and lightning.

Action: (1) Madotsuki spins the umbrella.

Location: Puddle World - Pick it up off the ground.

Practical Uses: Can be used to douse the fire in the Blazing Corridor, although the Yuki-onna effect does the same thing. Can be used to stop the rain in the Dense Woods A if the effect is equipped and then unequipped.

Madotsuki extinguishing the Blazing Corridor's flames with the Umbrella effect.

Hat and Scarf

Hat & Scarf(ぼうしとマフラー)

Hat and Scarf.png
Hat and Scarf Egg.png
Hat and Scarf 2.png

Wear a hat and scarf / Don a hat & scarf. 

Appearance: Madotsuki wears a hat and scarf.

Passive Effect: In the snowman form, Madotsuki cannot pinch herself awake due to her lack of arms, and she walks twice as slowly.

Action: (1) When snowing, Madotsuki transforms into a snowman.

Location: Block World - Pick it up off the ground.

Practical Uses: As a snowman, interacting with Mafurako will always teleport you back by her side on the return trip, meaning you don't have to search for her to teleport again. In the Blazing Corridor, standing next to the fire as a snowman will cause Madotsuki to slowly melt and become immobile.

Yuki-onna

Snow Woman(ゆきおんな)

Yuki-onna.png
Yuki-onna Egg.png

Become the snow woman / Morph into a Snow Woman.

Appearance: Madotsuki transforms into a Yuki-onna.

Passive Effect: It snows, which continues until Madotsuki unequips the Yuki-onna effect into her normal form. This also enables the Hat & Scarf effect to transform Madotsuki into a snowman.

Action: None.

Location: Snow World - Interact with the Yuki-onna.

Practical Uses: Can be used to douse the fire in the Blazing Corridor, although the Umbrella does the same thing. Can be used to stop the snow in Snow World if the effect is equipped and then unequipped.

Knife

Kitchen Knife(ほうちょう)

Knife.png
Knife Egg.png

Wield a kitchen knife / Equip a kitchen knife.

Appearance: Madotsuki holds a knife.

Passive Effect: Mobile NPCs will run away from her. Most characters that can't move will animate faster, as if in panic.

The Stabbing Room, which is easily traversed with the Knife effect.

Action:

  • (1) Madotsuki switches the knife between her hands.
  • (Z) Madotsuki stabs with the knife, killing or wounding characters. Some characters and objects react strangely or cause something to occur after being stabbed, including:
    • Toriningen - Will turn into their 'lunatic' form if they weren't already, and will begin chasing Madotsuki.
    • Mars-san - Its eye changes color and a small wound appears on its foot.
    • Onsen-san - It completely changes color and stops drinking its water.
    • Pain Blob - Shows its face.
    • Arms and Legs in the White Desert - They twitch.
    • The Eye Box - Has a 1 in 30 chance of taking you to the Eye People section of the White Desert. The same condition and chance applies to going back to White Desert A.
    • Dave Spector - Stabbing the southwest one grants access to other White Desert areas in the tunnel it wanders by.
    • Henkei Shita - The one in Hell has a 1 in 256 chance of transporting you to the Footprint Path A.
    • Extinguishes candles in Candle World.
    • Makes the eyeballs change color in Eyeball World.

Location: Dark World - Pick it up off the ground.

Practical Uses:

  • Killing/wounding NPCs.
  • Scaring NPCs away from you - can be used to move NPCs that block your way.
  • Interacting with the environment.
  • Obtaining money by killing NPCs.
  • Accessing new areas.

Medamaude

Eye Palm(めだまうで)

Medamaude.png
Medamaude Egg.png

Become Medamaude / Warp into an Eye Palm.

Appearance: Madotsuki's head becomes a giant hand with an eye in its palm.

Passive Effect: None.

Action: (1) Madotsuki closes her palm and teleports to the center of the Nexus.

Location: Eyeball World - Interact with Medamaude.

Practical Uses: Can be used to teleport back to the Nexus quickly and escape from traps (such as being caught by a Toriningen or Uboa) without having to pinch yourself awake.

Notes: When Madotsuki pinches herself, you can notice a little teardrop.

Fat

Fatten(ふとる)

Fat.png
Fat Egg.png

Get fat / Balloon in size.

Appearance: Madotsuki becomes fatter.

Passive Effect: None.

Action: (1) Madotsuki's belly rumbles and an emote appears.

Location: Docks B - Interact with Strober.

Practical Uses: None.

Midget

(こびと)

Midget.png
Midget Egg.png
Maximum number of Madotsuki midgets

Become small / Shrink in size.

Appearance: Madotsuki becomes very small.

Passive Effect: Madotsuki can fit through certain small entrances.

Action:

  • (1) Madotsuki produces another midget which walks in sync with her. She can produce up to 7 midgets at once.
  • (3) One of the cloned midgets will scream and burst in a small spray of blood.

Location: Candle World - Catch and interact with the Dwarf.

Practical Uses:

Flute

(ふえ)

Flute.png
Flute Egg.png
Effect flute.png

Play a flute / Brandish a flute.

Appearance: Madotsuki holds a flute to her lips

Passive Effect: None.

Action: (1) Madotsuki plays a short, four-note tune. There are five different tunes that Madotsuki randomly plays.

Location: The Music Room in the Mall - Pick it up off the floor.

Practical Uses: None.

Neon

(ネオン)

Neon.png
Neon Egg.gif

Become a neon light / Glow like a neon sign.

Appearance: Madotsuki glows like a neon sign.

Passive Effect: None.

Action: (1) Causes the screen to change color as if bathed in a neon light. The effect wears off when the effect is unequipped. Pressing the 1 button again causes the screen to cycle randomly between shades of red, blue, yellow, and violet.

Location: Neon World - Interact with the Neon Parrot.

Practical Uses: None.

Nopperabou

Faceless Ghost(のっぺらぼう)

Nopperabo.png
Nopperabou Egg.png

Become the faceless ghost / Materialize as a faceless ghost.

Appearance: Madotsuki becomes a Noppera-bō.

Passive Effect: None.

Action: (1) Madotsuki's head jumps off her shoulders and spins around.

Location: Sewage Processing Plant B in the Sewers - Interact with the Nopperabou Ghost.

Practical Uses: None.

Severed Head

(なまくび)

Severed Head.png
Severed Head Egg.png

Become a severed head / Be reduced to a severed head.

Appearance: Madotsuki becomes a severed head.

Passive Effect: Madotsuki's height and speed decrease. She also cannot pinch herself awake due to her lack of arms.

Action: None.

Location: Guillotine World - Interact with the Guillotine.

Practical Uses: Allows Madotsuki to see Closet Madotsuki, as her normal height blocks the view.

Towel

(タオル)

Towel.png
Towel Egg.png

Wrap up in a towel / Wrap yourself in a towel.

Appearance: Madotsuki has a towel wrapped around her.

Passive Effect: None.

Action: (1) Madotsuki sneezes.

Location: Infinite Wilderness - Interact with Ittan-momen.

Practical Uses: None.

Cat

(ねこ)

Cat.png
Cat Egg.png
Cat Madotsuki meowing, revealing her red eyes.

Grow ears and a tail / Sprout cat-ears and a tail.

Appearance: Madotsuki grows cat ears and a tail.

Passive Effect: None.

Action: (1) Madotsuki faces the camera and meows like a cat, with large red eyes. She paws the air with her right hand and holds a koban coin in her left, resembling a Maneki-neko.

Location: Shield-Folk World - Interact with Nekoin.

Practical Uses:

  • Drawing NPCs toward you - Can be used to move NPCs that block your way or to find NPCs hidden in the area.
  • Provoking a reaction from certain NPCs and the environment.
  • Summons UFOs at the top of Mars.

Notes: In most cases, this allows you to move characters out of your way without using the Knife effect to kill them. This may be in tune with the Maneki-neko being loosely associated with Guanyin, who is revered in Japan as Kannon (観音), the goddess of mercy and compassion. Maneki-neko with their left paw raised are also said to bring in people or customers, thus why it attracts certain NPCs.

The Cat effect attracting UFOs to Mars.

Lamp

(でんとう)

Lamp.png
Lamp Egg.gif

Become a lamp / Change into a lamp.

Appearance: Madotsuki's head transforms into a lamp.

Passive Effect: When the light is on, dark areas light up, improving visibility.

Action: (1) Switches the light on and off.

Location: Lamp World - Interact with the Walking Lamp.

Practical Uses:

Madotsuki lighting up Dark World with the Lamp effect.

Bicycle

(じてんしゃ)

Bicycle.png
Bicycle Egg.png
Madotsuki Bicycle.png

Ride a bicycle / Mount a bicycle.

Appearance: Madotsuki rides a bicycle.

Passive Effect: Madotsuki's speed is doubled.

Action: (1) Madotsuki rings the bicycle's bell.

Location: Graffiti World - Pick it up off the floor.

Practical Uses: Can be used to travel through the dream world much faster than by walking, catch fast-moving characters like the Dwarf and Nekoin, and escape from lunatic Toriningen.

Long Hair

(ロングヘアー)

Long hair.png
Long Hair Egg.png

Grow long hair / Grow long hair.

Appearance: Madotsuki's hair becomes longer.

Passive Effect: None.

Action: (1) Madotsuki sits down (same as default).

Location: Mural World - Interact with the long-haired Mouth Monster.

Practical Uses: None.

Poop Hair

Poo Hair(ウンコヘアー)

Poop hair.png
Poop hair Egg.png

I certainly hope it's hair / Grow poo hair.

Appearance: Madotsuki's hairstyle is done up to resemble poop. At least we hope so.

Passive Effect: None.

Action: (1) Madotsuki drops a fly which buzzes around in place.

Location: Underground World Storage Room - Interact with the poop-haired Mouth Monster.

Practical Uses: Can be used to mark locations for a short time, though only in the same room/area.

Blonde Hair

Blonde(ブロンド)

Blonde hair.png
Blonde hair Egg.png

Grow long, golden hair / Glow long blonde hair.

Appearance: Madotsuki's hair becomes long and blonde.

Passive Effect: None.

Action: (1) Madotsuki sits down (same as default).

Location: Mural World - Interact with the blond-haired Mouth Monster.

Practical Uses: None.

Triangle Kerchief

Spirit Headband(ずきん)

Triangle Kerchief.png
Triangle Kerchief Egg.png

Wear triangle kerchief / Put on a Spirit Headband.

Appearance: Madotsuki wears a triangle kerchief as a tiara, symbolizing death in Japanese culture.

Passive Effect: In the 'ghost form', Madotsuki is invisible to NPCs.

Action: (1) Madotsuki transforms into an 'invisible' ghost and becomes translucent.

Location: Ghost World - Catch and interact with Fleebie.

Practical Uses: When in 'ghost form', lunatic Toriningen can be avoided as Madotsuki is invisible to them, but they will trap her if she interacts with them intentionally.

Madotsuki safely close to two Toriningen thanks to the Triangle Kerchief effect.

Witch

(まじょ)

WitchYN.png
Witch Egg.png
Witch Broom.png

Become a witch / Become a witch incarnate.

Appearance: Madotsuki becomes dressed like a witch, including the pointed hat and robe.

Passive Effect: None.

Action: (1) Madotsuki mounts a broom and hovers a short distance from the ground.

Location: Witch's Island - Interact with Kimajo.

Practical Uses: Can be used to fly off The Rooftop of the Mall. Pressing Z returns to the rooftop, and pressing 1 dismounts the broom in midair, causing Madotsuki to fall out of bed and wake up.

Demon

Oni(おに)

Demon.png
Demon Egg.png

Become a demon / Reconstitute as an oni.

Appearance: Madotsuki transforms into a Demon. Her skin turns red, horns appear on her head and she wears some sort of animal skin.

Passive Effect: None.

Action: (1) When it's raining, a clap of thunder and lightning can be produced.

Location: FC Basement - Interact with the FC Demon.

Practical Uses: Can be used to summon the FC Demon in the Pyramids area of FC World B any time the area is entered with the effect equipped, giving a warp to the FC Demon's room in FC House. Without the effect, it is normally a 1 in 8 chance.

Buyo Buyo

Squish-Squish(ぶよぶよ)

Madotsuki.png
Buyo buyo Egg.png

Body becomes soft and squishy / Change into a squishy blob.

Appearance: When Madotsuki walks, she wobbles around like jelly.

Passive Effect: None.

Action: (1) Madotsuki wobbles up and down.

Location: FC World B - Interact with Buyo Buyo.

Practical Uses: None.

Stoplight

Traffic Light(しんごう)

Stoplight.png
Stoplight Egg.png
Effect Stoplight Red.PNG

Become a stoplight / Change into a traffic light.

Appearance: Madotsuki transforms into a stoplight.

Passive Effect: Madotsuki cannot pinch herself awake due to her lack of arms.

Action: (1) Switches stoplight between green (go) and red (stop).

Location: Dense Woods B (The Road) - Interact with Shitai-san.

Practical Uses: When the light is red, it affects NPCs in a couple of ways:

  1. All NPCs will freeze in place, which is useful for avoiding Toriningen or catching fast-moving characters.
  2. The appearances of some characters also change, for example:
The Stoplight effect transforming Monoko.

Instructions

Tutorial(ゲームのせつめい) See the instructions again / Review the game's tutorial.

Appearance: None

Passive Effect: None

Action: (Equip) A basic tutorial on how to play the game

Location: Madotsuki starts with this effect

Practical Uses: Learning how the game works

  • Instructions.gif
  • Instructions2.gif

This is the only effect that can be used in the real world and cannot be dropped as an egg in the Nexus.

Pseudo-effects

These are actions that work like effects, but are not added to Madotsuki's inventory and are not required to finish the game.

Chair

Chair.png

The chair in Madotsuki's dream room can be ridden when Madotsuki sits on it. Instead of writing in her diary, sitting at the desk and pressing Z (facing the desk) will let Madotsuki scoot the chair around her bedroom. She can ride the chair almost anywhere in the dream world (albeit very slowly), but will not be able to get off it until she returns it to her desk. Some areas are also inaccessible with the chair:

Effects can be equipped when sitting on the chair for the first time, the sole cause of glitches. Equipping an effect while in the chair then riding it will cause the effect to stack with the chair. This results in the passive effect functioning and any effect action (besides sitting down) working as normal. The aforementioned areas remain inaccessible as Madotsuki is technically still in the chair, with the exception of Docks A, which can be entered from the Sewers if the Midget effect is equipped while in the chair.

Crick in the Neck

Looking Left.png
Look left sit.png

The only involuntary effect, and the only one to be in the real world. Madotsuki has a random chance of waking up with a crick in her neck. She will constantly be looking left. As she does with no effect, pressing 1 will cause her to sit down. She is unable to write in her diary or play NASU. Going back to sleep and waking up again should solve the problem. Although Madotsuki will not dream that she has a crick in her neck, there is a matching FC World sprite that is unused, suggesting that it could have been an actual effect at some point.

Namekuji

Name3.png

When the Namekuji are interacted with, they appear above Madotsuki and start to wiggle. One of both types of Namekuji can appear at a time. They disappear once Madotsuki leaves Forest World.

Trivia

The mobile version's different effect names.
  • The Frog effect is the only effect that can be found in two separate locations: Forest World and Dense Woods B.
    • The Severed Head effect can technically also be obtained in two different areas, albeit they are variants of one world, them being the normal and big variants of Guillotine World.
  • When the English Steam release of Yume Nikki first came out, the translation mislabeled many effects with different names, such as the Fat effect being called "Get Fat", the Flute being named "Whistle", the Severed Head being called "Talking Head", the Demon effect being called the "Devil" effect, and the Instructions being called "Game Info". This was fixed 12 days after the original release.
    • Some of these incorrect names still appear in the FC World menu, and when picking up dropped effect eggs in the Nexus.
    • The mobile version of the game also features some different names, such as Midget being named "Dwarf", Medamaude being called "Evil Hand", Nopperabou being called "Faceless", and Severed Head being called "Chopped Head".
  • There are some unused effects that remain in the files of 0.10a, despite never being implemented in a previous versions.
  • In 0.10 and 0.10a, the Witch effect has a bug where, if the player floats with the broom in the Pink Sea, the Number World Bed Room, or the second Neon Tile Path area, the player's footsteps can still be heard while moving around.
  • In 0.10a, the Triangle Kerchief effect's cheek pinch animation always uses the graphic for the invisible state, even if you pressed 9 while visible.
    • The animation for waking up in this state also lacks the sprite transparency that the effect's invisible state typically has.
  • In versions before 0.10, some effects had different 1-key actions:
    • The Knife effect originally had Madotsuki stab the air instead of switching which hand the knife was in. Despite this action sharing its animation with the effect's actual function, it does not affect NPCs as if they have been stabbed.
    • The Triangle Kerchief originally made Madotsuki progressively more transparent when the 1 key was pressed, and less transparent when the 3 key was pressed. Toriningen could also still see and trap Madotsuki if she became fully transparent with the effect.
    • In 0.04, the Umbrella and Blonde Hair effects lacked 1-key actions altogether, though they gained their respective actions in 0.06.