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Wriggle Nightbug

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ɾiɡ̃ɯᵝɾ̠ɯᵝ na̠ito̞βa̠ɡ̃ɯᵝ (♫)
Wriggle Nightbug
Wriggle Nightbug
Wriggle Nightbug in Imperishable Night
A Bug of Light Wriggling in the Dark
More Character Titles

Firefly Youkai


Manipulation of insects

Music Themes
Official Games
Print Works
"They say a half-inch bug has only one-tenth an inch of soul."
"That's 80% smaller."
Sakuya Izayoi and Remilia Scarlet (Imperishable Night Stage 1)

Wriggle Nightbug (リグル・ナイトバグ Riguru Naitobagu) is a firefly with the ability to control other insects. She likes using her ability to direct concerted performances for her own amusement, as well as to attack humans who underestimate her significance or the importance of insects in general.

General Information

Wriggle first appeared as the first stage boss and midboss of Imperishable Night. She's classified as a firefly youkai, which is explained as having more survivability because humans are less likely to kill them. However, like other insects, she is weak to fire, cold, fumigation, and insect repellent. As an insect, she forgets about information that's no longer needed. She normally sticks around bushes, clumps of grass, and other places insects normally thrive.


Wriggle is quick to anger, and seems to take it personally when someone offends insects in any way. She is concerned about the decrease in the amount of insects lately, especially due to insecticide.


At one point, Wriggle was in charge of an insect notification service. However, during the span of time between Aya Shameimaru's article and her interview, she stopped, and forgot all about it.


Ability to control insects

Wriggle possesses the ability to freely manipulate insects of most varieties, where it's unclear if this power is limited to only certain insects. She is seen manipulating various types of fireflies, as well as moths (which her spell card calls "butterflies"). While individual bugs may be quite weak, this ability can be used to call on entire swarms of them, including poisonous insects like deadly hornets; when she gets serious, she's also able to summon a swarm of harvest mites, insects so small that they are invisible to the naked eye and are the most dangerous bugs, that can bite without detection and infect humans with fatal diseases. In Perfect Memento in Strict Sense, Hieda no Akyuu also describes her as being able to control caterpillars, spiders, crickets, and other insects, so it is likely the type of insect doesn't matter.

Because she often uses this ability to surround herself with bugs, many humans find it unpleasant to confront her. However, while this ability makes her a fearsome opponent for most humans, Wriggle herself is almost harmless, and confronting her while she is alone (i.e. winter, when there are no or few bugs around her) would lead to an easy victory. Moreover, since the insects she controls still have their typical weaknesses, such as cold, fire, fumigation and insecticide, one can greatly weaken her capabilities by exploiting one or more of these weaknesses.

Character Design


Her full name is Wriggle Nightbug (リグル・ナイトバグ). "Wriggle" comes from the English word, which is commonly used to refer to bugs moving along the ground. "Nightbug" is a portmanteau of "night" and "bug"; the meaning is clear, as she is a firefly.


Wriggle has blue eyes, teal hair, and bug-like antennae. She wears a white shirt with stylized short sleeves, a black cape with red lining, which is shaped to resemble insect wings (however, Hieda no Akyuu describes her as having actual wings), and baggy blue knee-length shorts.

According to Akyuu, she looks like an average human aside from the insect appendages, and her childlike appearance is a testament to the fact that insect youkai are no longer equal to oni and tengu in terms of inspiring fear.



Imperishable Night
Wriggle's sprite in IN

During the events of Imperishable Night, Wriggle attacks the player characters, thinking they'd be easy targets. However, the pair fights Wriggle off without breaking a sweat.


Shoot the Bullet
Wriggle in HM

In Shoot the Bullet, Aya Shameimaru encountered Wriggle on stage 1 and took photos of her danmaku.

Hopeless Masquerade

Wriggle made a background cameo appearance in Hopeless Masquerade on the Hall of Dreams' Great Mausoleum and Youkai Tanuki Forest stage. She is seen floating and cheering.


Bohemian Archive in Japanese Red

In Bohemian Archive in Japanese Red, Wriggle used her manipulation of insects in order to start an "Insects' News Service," which would send large numbers of bugs to make announcements and deliver messages for clients if they supplied plans and a specific time in advance. Wriggle organized the service with the intent of improving the social status of bugs, but soon got tired of it and stopped providing it.

When interviewed later, Wriggle does not remember the service, because insects discard information that is no longer in use.





Spell Cards

Spell cards
Name Translated Comments Games Stage
Total: 11
蛍符「地上の流星」 Firefly Sign "Meteors on Earth" IN
St. 1: H
蛍符「地上の彗星」 Firefly Sign "Comets on Earth" IN St. 1: L
灯符「ファイアフライフェノメノン」 Lamp Sign "Firefly Phenomenon" IN St. 1: E/N/H/L
蠢符「リトルバグ」 Wriggle Sign "Little Bug" IN St. 1: E
蠢符「リトルバグストーム」 Wriggle Sign "Little Bug Storm" IN
St. 1: N
蠢符「ナイトバグストーム」 Wriggle Sign "Night Bug Storm" IN St. 1: H
蠢符「ナイトバグトルネード」 Wriggle Sign "Nightbug Tornado" IN St. 1: L
隠蟲「永夜蟄居」 Hidden Bug "Endless Night Seclusion" IN
St. 1: N/H/L
「季節外れのバタフライストーム」 "Unseasonal Butterfly Storm" IN LW
蛍符「地上の恒星」 Firefly Sign "Fixed Stars on Earth" StB St. 1
蝶符「バタフライストーム」 Butterfly Sign "Butterfly Storm" StB St. 1

Additional Information

  • According to an interview with ZUN, Wriggle could have made an appearance in Touhou Hisoutensoku, however, she was eliminated from consideration due to time constraints.[1]


Official Profiles

Imperishable Night Demo - おまけ.txt
Wriggle Nightbug IN  ○リグル・ナイトバグ



Wriggle Nightbug

First stage boss. A youkai firefly.
She possesses ability to manipulate insects

Certain insects have poison.
If she controls something like a horde of harvest mites, humans can do nothing against her. May be stronger than you think.

Imperishable Night - キャラ設定.txt
Wriggle Nightbug IN  ○1面ボス 闇に蠢く光の蟲

  Wriggle Nightbug






Stage 1 Boss, A Bug of Light Wriggling in the Dark

Wriggle Nightbug

Species: Youkai Insect
Abilities: Manipulate insects

Stage 1 Boss.

Insects gather around her. Fireflies can perform their flashing with timed synchronization even in huge swarms, but that is actually because there is a commander like her within them.

Those who carelessly regard her as a mere insect will be easy victims to the swarm of insects. When Wriggle is upset and serious, she summons a swarm of harvest mites which can cause deadly fever to humans.

She can't stand cold or insecticide.

Official Sources

Official sources