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Hallucigenia (ハルキゲニア)
Hallucigenia's Title Screen
Latest Version

0.008 (2012/01/15)


Trendy-Sabamiso (トレンディ鯖味噌)




RPG Maker 2000

Release Date

March 29, 2010


HallucigeniaSprites Aya (あや) / Aine (あいね)

Nexus Doors

Aya - 4
Aine - 4


Aya - 14
Aine - 10


Aya - 1
Aine - 2


Hallucigenia (ハルキゲニア) is a fangame by Trendy-Sabamiso (トレンディ鯖味噌), a contributor to Yume 2kki (ゆめ2っき). It stars two young girls named Aya (あや) and Aine (あいね).


The game starts from Aya's perspective in an inescapable, mostly barren room. The dream world is accessed through a black book on her bed, her appearance changing outside of reality.

After completing certain tasks in Aya's dream world, Aine becomes a playable character. Aine's dream world is very similar to Aya's dream world, but is grayscale due to her colorblindness.

Unlike most fangames, Hallucigenia lacks background music, and has only a handful of sound effects.

In older versions of the game effects were referred to as Colors.


Aya enters her dream world from the black book on her bed. When in the dreamworld you are still Aya, but her appearance changes. Some theorize that this is her desired appearance.

Aine enters her dream world by sleeping on the bed. She lost her right arm, and she is also colorblind that she sees things in grayscale, either in reality or the dream world.


You can do actions with certain effects by long pressing Z.


Holding Z without an effect makes Aya's body distort.HallEff07


Name Image Description
Switch (スイッチ) HallEff03-1HallEff03-2 Aya has a switch on her head. Holding Z pulls the switch, changing her eye color.
Slithering / Zuruzuru (ずるずる) HallEff12 Aya has something pink slithering behind her as she walks.
Scythe (かま) HallEff06 Aya carries a scythe, allowing her to kill NPCs.
Dune / Sand Hill (すなやま) HallEff05 Aya's body wrapped in a dune. Holding Z makes her tuck her head inside it and return to the nexus.
Wheel (しゃりん) HallEff01 Aya has a wheel attached to her body, splitting her in half. Holding Z makes her body split and deploys the wheel, doubling her speed. Holding Z again makes her retract the wheel into her body.
Mask (かめん) HallEff13 Aya wears a black mask with an eye on it. Holding Z changes the eye's color.
Gun (じゅう) HallEff10 Aya carries a rifle on her back, allowing her to kill NPCs.

Half (はんぶん)

HallEff09 Half of Aya's body is missing, allowing her to pass through narrow entrances. Holding Z switches the side of her body that is visible.
Rocks / Stones (いしころ) HallEff07-1 Aya turns into a couple of rocks, making her unable to move but hiding her from chasers.
Three-legged (さんぼんあし) HallEff11-1 Aya has three legs.
Manhole (マンホール) HallEff08 Aya has a manhole cover on her head. Holding Z makes her dive underground, hiding her from chases but not making her invulnerable; the effect also allows her to pass through low entrances when underground.
ASCII Art (アスキーアート) HallEff14 Aya is drawn in ASCII art. Holding Z makes the upper part of the string displace, Aya fixing it afterwards.
Sliced (わぎり) HallEff02 Aya is (seemingly harmlessly) sliced horizontally into 5 parts, each moving around as she walks. Holding Z makes her drop the pieces down on top of each other.
Bed Hair (てんねんパーマ) HallEff03 Aya's hair becomes messy. Holding Z makes her try to straighten it, but it goes back to its previous form.

Colors (Original Effects)Edit

These were Aya's effects before version 0.006. In version 0.004, the effects lacked button actions and the Blue effect looked different. In version 0.005a, there was an effect action button in the Items menu. All of Aya's sprites were missing eyes in these versions, but there was a hidden patch in the GameOver folder giving her sprites eyes.

Name Image Description
Red (あか) RedAya Aya becomes a red and black-cloaked person with an explosion/flower(?) for a head, making her able to kill NPCs. Using the action item shrinks and grows the explosion/flowers.
Orange (オレンジ) OrangeAya Aya becomes a cat-eared brunette with orange clothes. Using the action item makes her dance.
Yellow (きいろ) YellowAya Aya becomes a "human lightbulb". Using the action item toggles the "light" on or off.
Yellow-Green (きみどり) YellGreeAya Aya becomes a walking green onion, letting her walk into some secret areas.
Green (みどり) GreenAya Aya becomes a green blob. Using the action item lights up the red eyes(?).
Blue (あお)
0.004: Aya becomes a person that has spiky blue hair and blue clothes.

0.005a: Aya becomes a blue popsicle, making her immobile.

Aqua (みずいろ) AquaAya Aya's head becomes a fishbowl with fish inside. Using the action item rots away the fish and sends her to the nexus.
Indigo (あいいろ) IndigoAya Aya looks like the doll (named "Rusia" according to the game files) from the Circus in the Cursed Maze. using the action item makes it snow, and the effect can also stop chasers in place.
Purple (むらさき) PurpleAya Aya gets purple hair and wears a purple trench coat and fedora. She walks backwards, but using the action item switches her movement style from backwards to forwards.
Pink (ピンク) PinkAya Aya wears pink clothes and has pink hair with a ponytail. Using the action item makes her do some hand motions.
Black (くろ) BlackAya Aya becomes a person with a mask. Using the action item summons rain.
Ocher (おうどいろ) OcherAya Aya becomes a drill.
Brown (ちゃいろ) BrownAya Aya becomes a brown beetle, increasing her speed.


Holding Z without an effect makes Aine look at her lost right arm.

Name Image Description
Cowboy (カウボーイ) HallEff20 Aine is dressed up as a cowboy. Holding Z warps her back to the nexus.
Kappa (かっぱ) HallEff17 Aine wears a raincoat, creating rain as soon as it is equipped.
Singer (かしゅ) HallEff21 Aine holds a microphone in her hand. Holding Z plays a chime, showing a music note floating above Aine's head.
Mass (かたまり) HallEff24 Aine's head changes into a purple mass.
Light (かろやか) HallEff23 Aine floats in the air, increasing her speed.
Monster (かいぶつ) HallEff16 Aine turns into a monster. Interacting with NPCs play a strange sound, fill the screen with Aine's blobs, and make the NPC disappear.
Mosquito (か) HallEff15 Aine becomes a mosquito, allowing her to enter smaller places.
Flower Bed (かだん) HallEff19 Aine's head becomes a flower bed with a single flower in the center. Holding Z makes her body dive underground, making her immobile but giving her stealth from chasers.
Common Cold (かぜ) HallEff22 Aine becomes sick with the common cold. Holding Z makes her swing the thermometer with her mouth.
Turtle (かめ) HallEff18 Aine has a turtle's shell on her back, decreasing her speed.



Version Date Announcement Download

January 15, 2012

Pixiv Official Website (Scroll down and click both links)

December 12, 2010 (Bugfix)

July 4, 2010 (Bugfix)

May 4, 2010


Version Languages Translators Announcements Downloads
  • English
  • ?

External LinksEdit

Gameplay Video (Version 0.008)Edit

Yume Nikki fangames- Hallucigenia

Yume Nikki fangames- Hallucigenia

Gameplay of Hallucigenia (Version 0.008)

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