Unidasu

Unidasu
A neutral Unidasu in Sonic Lost World.
Appearances
First appearance	Sonic the Hedgehog (1991)
Game appearances	Sonic the Hedgehog (1991) Sonic the Hedgehog (8-bit) Sonic Adventure Sonic Adventure DX: Director's Cut Sonic Adventure 2 Sonic Adventure 2: Battle Sonic Rivals 2 (Collectible card) Sonic the Hedgehog 4: Episode I Sonic Lost World
Appearances in other media	Archie Comics
Biographical overview
Creator	Dr. Eggman
Nickname(s)	Unidasu Unidus Orbinaut Spike Spinner E-15 Spiky Spinner[citation needed] E-32 Unidus[citation needed]
Species	Robot
Physical description
Color scheme	Dark blue, red Black, gray
Eyes	Cyan Black
Alignment and character traits
Alignment	Evil
Affiliation(s)	Eggman Empire Deadly Six (formerly)
Powers and abilities
Skills	Levitation Orbital spiked balls

The Orbinauts return as one of Sonic's most challenging Badnicks! Pay close attention, you only have a split second to defeat them.

— Profile, Sonic the Hedgehog 4: Episode I website

The Unidasu (ウニダス, Unidasu^?), is a recurring enemy in the Sonic the Hedgehog series which first appeared in Sonic the Hedgehog (1991). It is a Badnik variant and an Orbinaut model created by Dr. Eggman which fires spiked balls at enemies.

Appearance

As part of the Sea Urchin-like Orbinaut series, Unidasus resemble its other variations such as Uni Uni. They have a spherical body with wide eyes and four red spiked balls orbiting their body. Usually, their body is blue when in their neutral state, but when spotting an enemy, their body turns red. They also usually have black eyes, but had cyan eyes in Sonic Lost World.

In Sonic Adventure and Sonic Adventure 2, the Unidasus' bodies were colored black with cyan eyes. They were also given a grey bottom plate and small motors on their back. Orbiting them are four black, explosive orbs with white spikes on them.

Game appearances

Sonic the Hedgehog (1991)

First appearing in Sonic the Hedgehog (1991), the Unidasus appears in Labyrinth Zone and Scrap Brain Zone Act 3. In the case of the latter, they are normally found in the underwater sections where they are cramped inside narrow passages, thus obstructing the player's path. The player's best option is to let them fire their spiked balls and then attack them from a vulnerable angle.

In the 8-bit version of the game with same name, Unidasus once again appears in Labyrinth Zone. In this version, they have a light blue body instead. That aside, they behave like their 16-bit counterparts. Like other Badniks in the game, they also do not have any Animals powering them.

Sonic Adventure

The Spiky Spinner as it appears in Sonic Adventure.

In Sonic Adventure and Sonic Adventure DX: Director's Cut, the Unidasu is an E-Series model referred to as the Spiky Spinner (ウニダス, Unidasu^?, lit. "Unidus"), or E-15 Spiky Spinner.^{[citation needed]} In this game, they were given a slight redesign, making them look more mechanized. They appear in the following Action Stages for each character:

Character	Action Stage
Sonic	Speed Highway, Sky Deck
Tails	Sky Deck, Speed Highway
Knuckles	Speed Highway, Sky Deck

In gameplay, Spiky Spinners hover back and forth. They start attacking should the player get close enough and will use one of two attack patterns: they either throw their explosive spiked balls at the player or rotate their spiked balls over a wider radius for a sweeping attack. After losing their spiked balls, the Spiky Spinners will still follow the player, but are now wide open to attacks. When destroyed, they release a collectible Animal.

Sonic Adventure 2

An Unidus approaching Knuckles in Sonic Adventure 2.

In Sonic Adventure 2 and Sonic Adventure 2: Battle, the Unidasu is again an E-Series model named Unidus (ウニダス, Unidasu^?), or E-32 Unidus.^{[citation needed]} They also show the same design they had in Sonic Adventure. The Unidus appears in the following Action Stages for each character:

Character	Action Stage
Tails	Hidden Base
Knuckles	Death Chamber

In gameplay, Unidus use the attack pattern from Sonic Adventure where they rotate their spiked balls over a wider radius for a sweeping attack. However, they will not launch their spiked balls at the player. Defeating a Unidus rewards the player with 100 points and releases a collectible Animal inside it.

Sonic Rivals 2

In Sonic Rivals 2, the Unidus from Sonic Adventure 2 appears as a collectible card. Their card is collected by getting the high score in the boss duel for Neon Palace Zone.

Sonic the Hedgehog 4: Episode I

The Unidasu in Sonic the Hedgehog 4: Episode I.

In Sonic the Hedgehog 4: Episode I, the Unidasus (referred to here as Spike Spinners) appear in Lost Labyrinth Zone with a slightly upgraded design. Despite that, they have the same attack patterns as in previous games. However, Unidasus' bodies are in this game constantly red instead of changing when spotting Sonic.

Sonic Lost World

A mad Unidasu in the Wii U version of Sonic Lost World.

In Sonic Lost World, the Unidasu appears in both the Wii U and Nintendo 3DS version of the game. During the game, it turns out that the Badniks (the Unidasus included) got hijacked by the Deadly Six.

In the Wii U version of the game, Unidasus can be found in Frozen Factory Zone 4 and Sky Road Zones 1, 4 and ?. They also retain their coloration change from blue to red when spotting the player. In the 2.5D side scrolling sections, Unidasus hover around while their spiked balls orbit them laterally. They are here often stacked with Uni Unis to create huge enemy walls. In the 3D sections of the game, their spikes orbit them horizontally instead. When noticing Sonic, their spiked balls freeze in their position and are launched laterally at the player one by one rather fast.

In the Nintendo 3DS version of the game, Unidasus appears only in the 3D sections in Sky Road Zone 2. Unlike the Wii U version, Unidasus never fire their spiked balls or turn red when spotting the player, and instead however around with their spiked balls (much like the Uni Unis). The player has to avoid hitting their spike balls by targeting their body from above.

Powers and abilities

Unidasus floats around paths with spiked balls orbiting their body. Once they spot the player though, the Unidasus' body turn from blue to red, and they start firing their spiked balls straight towards the player one by one (albeit slowly), usually in orbital order from the bottom of their body. Their spiked balls usually orbit them laterally, but in 3D installments such as Sonic Adventure and Sonic Lost World, they occasionally orbit them horizontally.

In most of the games, Unidasu's spiked balls are thick obstacles, while in Sonic Adventure, spiked balls are explosive after they come in contact with its victim.

In other media

Archie Comics

A group of Orbinauts as they appear in Archie Comics.

In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Unidasus' name is never mentioned and are instead referred to as Orbinaut. They were among the first generation of badniks produced by Dr. Robotnik. Over time though, the Orbinauts were rendered obsolete by more advanced robots and got decommissioned.

Following the events of Worlds Collide, the Orbinauts' history became nearly identical to that of their game counterparts.

Trivia

• Unused model of Unidus inside the data of Sonic Heroes.
• Unused model of Unidus' spiked ball in Sonic Heroes.

1/2

• In 2013 re-release of Sonic the Hedgehog (1991), by using the Debug Mode in Star Light Zone reveals Unidasu as an unused Badnik to be placed anywhere on the Zone. Their color palette is corrupt with yellow color scheme instead of red when they are about to fire their spiked balls.
• Inside the Sonic Heroes game's data, there are unused models of the Unidus from Sonic Adventure 2 (see image gallery on the right side). This leads to uncertain speculation of whether the Unidus would have actually appeared in the game.
• In Sonic X #11, the Uni Unis at a virtual reality version of Star Light Zone are seen having the Unidasus' color scheme.

Gallery

Sprites

A mad Uni Uni as it can be placed around Star Light Zone by using the Debug Mode in 2013 re-release of Sonic the Hedgehog (1991).

See also

• Uni-Uni

References

Navigation templates to Unidasu

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E-Series

• Games
• Archie Comics
• Sonic X
• IDW

E-01

E-100 ZERO

E-101 Beta (E-101 Mark II)

E-102 Gamma

Chaos Gamma

Guard Robo

E-103 Delta

E-104 Epsilon

E-105 Zeta

E-121 Phi

E-123 Omega

Egg Keeper

E-1000

E-2000

E-2000R

E-10000 A

E-10000B

E-10000 C

E-10000G

E-10000 N

E-10000 O

E-10000 P

E-10000R

E-10000 S

E-10000 Y

• Pre-Super Genesis Wave
• Post-Super Genesis Wave

ZERO

E-101 Beta (E-101 Mark II)

E-102 Gamma

E-103 Delta

E-104 Epsilon

E-105 Army

E-105 Zeta

E-106 Eta

E-107 Theta (Light Mobius)

E-108 Iota

E-109 Kappa

E-110 Lambda

E-111 Mu

E-112 Nu

E-113 Xi

E-114 Omicron

E-115 Pi

E-116 Rho

E-117 Sigma

E-118 Tau

E-119 Upsilon

E-120 Phi

E-121 Chi

E-122 Psi

E-123 Omega

E-1000

E-100 ZERO

E-102 Gamma

E-106 Eta

E-108 Iota

E-109 Kappa

E-110 Lambda

E-113 Xi

E-118 Tau

E-123 Omega

E-1000

E-11 Beacon

E-12 Behemoth

E-13 Guardbot

E-14 Sneezer

E-18 Guerra-Hard

E-21 Ballios

E-23 Missile Wrist

E-35 Funfun

E-38 Octoron

E-39 Quizon

Serpenter

E-42 Torole

E-43 Falcon

E-44

E-45 Sumo-Man

E-47 Pumpty

E-51 Intelligente

E-57 Clurken

E-65 Gorru-Gaooh

E-66 Da-Dai-Oh

E-70 Noizi

E-73 Egg Babylon

E-74 Weazo

E-77 Lucky

E-88 Lightning Bird

E-90 Super Sweeper

E-91 Lady Ninja

E-99 Eggsterminator

E-3000

ZERO

E-101 Beta (E-101 "Kai")

E-102 Gamma

E-103 Delta

E-104 Epsilon

E-105 Zeta

E-106 Eta

E-107 Theta

E-117 Sigma

E-123 Omega

Egg Keeper

E-1000

Sonic the Hedgehog (16-bit)

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Sonic Adventure

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*Appears in only the original Dreamcast version · **Appears in only Sonic Adventure DX · ^Appears in only the Sonic Adventure DX DLC of the 2010 remaster
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Sonic Adventure 2

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Sonic the Hedgehog 4: Episode I

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Sonic Lost World (Wii U)

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