This article is about the enemies with spiked balls for defenses. You could be looking for .
Orbinaut refers to a series [ of sea urchin ] citation needed Badniks that are created by Dr. Ivo Robotnik and are recurring enemies in the . The first Orbinaut models appeared in the original Sonic the Hedgehog series , and have since also appeared outside of the video games.
Sonic the Hedgehog
Orbinauts are said to be based off
sea urchins ( uni in Japanese). Orbinauts are different colors of metal orbs which are able to hover in the air. This Badnik's signature weapons are four spiked balls that ringed around of them. Some Orbinauts throw at its prey which is its only method of attack for some of these Badniks. This is also a major weakness; as once all four spiked balls have been thrown, the hovering Orbinaut itself is completely defenseless.
However some Orbinauts do not throw its spike balls away, but keep moving forward and keep ringing its spike balls at same time as keeping its defense on. It is usually impossible to defeat these types of Orbinauts without getting hit, so it is good to avoid them and simply keep moving. Few Orbinauts utilize its spike balls with different methods to stop the player.
Unidasu ( ウニダス ) ? 
 A blue variety of Orbinaut that sends the four spiked balls around it forward when an enemy is spotted. It first appears in the Labyrinth Zone from . It is arguably the most recognizable rendition of Orbinaut, as it was retooled with a modernized design for Sonic the Hedgehog . Sonic Adventure
Uni Uni ( ウニウニ ) ? 
 A green variety of Orbinaut that keeps the four spiked balls around it for defense. Unlike the previous model, it can only be defeated while Sonic is invincible or his jump is timed very carefully (or during the brief invulerability period once Sonic loses Rings or his Shield). It first appears in the Star Light Zone from .
Sonic the Hedgehog
 A metallic gray variety that only appears in the Launch Base Zone. It keeps the four spiked balls around it for defense, and only move when the player also moves. It can only be defeated while the player is invincible or with a well-timed Insta-Shield move by Sonic (or, again, while the player character is flashing after being hit).
A red variety of Orbinaut that has four fireballs (one in ) around it instead of spiked balls. It first appears in the Sonic Blast Hill Top Zone from . It became the most recurring offshoot of the Orbinaut series, with remodeled versions debuting in Sonic the Hedgehog 2 .
Appears in the IceCap Zone from and has four spiked ice balls around it. It sends the spiked balls forward to attack. Unlike projectiles from Orbinaut, the ice balls will be destroyed with no ill effects to the controlled character if they have any shield or contact with Sonic the Hedgehog 3 Knuckles' knuckles.
The Flamer is the latest variation of this Badnik from . Flamers are yellow and have spinning flamethrowers. Flamers can be found in Sonic the Hedgehog 4: Episode II Oil Desert Zone and can temporarily ignite fire on the oily landscape.
Navigation Templates to Orbinaut
Sonic the Hedgehog 3 / Beta Elements / Sonic & Knuckles / Lock on
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Angel Island Zone | Hydrocity Zone | Marble Garden Zone | Carnival Night Zone | IceCap Zone | Launch Base Zone | Special Stages | Bonus Stage
Sonic & Knuckles
Mushroom Hill Zone | Flying Battery Zone | Sandopolis Zone | Lava Reef Zone | Hidden Palace Zone | Sky Sanctuary Zone | Death Egg Zone | The Doomsday Zone | Special Stages | Bonus Stages
Azure Lake Zone | Balloon Park Zone | Chrome Gadget Zone | Desert Palace Zone | Endless Mine Zone
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Flame Mobile | Screw Mobile | Drill Mobile | Graviton Mobile | Freezer Mobile | Ball Shooter | Beam Rocket | Big Arm | Jet Mobile | Hang Mobile | Egg Golem | Hot Mobile | Knuckles | Mecha Sonic | Super Mecha Sonic | Kyodai Eggman Robo | The Doomsday Zone
Bounce Attack | Double Jump | Propeller Flying | Glide | Hyper Flash | Insta-Shield | Gliding Knuckles Attack | Spin Jump | Spin Dash | Spin Attack | Wall Climb
Air Bubbles | Balloon | Banana | Bomb | Bumper | Capsule | Change | Chaos Emeralds | Continue Monitor ( Water Shield, Flame Shield, Invincibility, Lightning Shield, Super Ring, Power Sneakers, Extra Life, S, Eggman) | Ring | Signpost | Self-Propelled Bomb | Slow-Down Shoes | Snowboard | Sphere | Spikes | Spring | Star Post | Super Emeralds | Switch
Angel Island | Booster | Cannon | Conveyor Belt | Corkscrew Loop | Crusher | Debug Mode | Fireball Cannon | Flipper | Flywheel | Freezing Machine | Goal | Gumball | High-Speed Elevator | Jump Stand | Lava Drill | Pulley | Reverse | Ring Shooter | Seesaw | Shuttle Loop | Slot Machine | Sonic & Knuckles' Gallery | Sonic 3's Gallery | Sonic & Knuckles & Sonic the Hedgehog 3 | Spear | Spiked Ball | Spinning Top | Spinning Wheel | Strange Relief | Transport | Warp Point | Winding Tunnel | Wonderman
Sonic Lost World
Sonic ( Super Sonic) | Tails | Dr. Eggman | Orbot | Cubot | Knuckles | Amy | Deadly Six ( Zavok, Zazz, Zomom, Master Zik, Zeena, Zor) | Yacker* | Animal Friends ( Flicky, Picky, Chirps, Pecky, Ricky, Rocky) | Omochao* | NiGHTS^ | Yoshi^
Windy Hill | Desert Ruins | Tropical Coast | Frozen Factory | Silent Forest | Sky Road | Lava Mountain | Hidden World* | Special Stage** | Nightmare Zone^ | Yoshi's Island Zone^ | The Legend of Zelda Zone^ | Circus*
Badniks Antion | Anton* | Aquis* | Balkiry | Ball Hog* | Bat Brain | Blaster* | Bomb* | Boo* | Boom Boo* | Burrobot* | Buzz Bomber | Caterkiller | Chopper* | Clucker | Cluckoid* | Coconuts* | Crabmeat* | Crawl | Crawlton | Dragonfly* | E-06 Bladed Spinner** | E-16 Electro Spinner** | Egg Pawn | Gohla | Grabber | Jaws | Madmole* | Moto Bug | Mushmeanie* | Nebula* | Newtron | Octus* | Orbinaut ( Uni Uni, Unidus) | Pata-Bata* | Penguinator | Sandworm | Slicer | Snale Blaster* | Spherical Pilot Badnik | Spider* | Spiker* | Spikes* | Turtloid*
Cactus | Sandworm | Sheep* | Surprise Crocodiles*
Zazz | Zomom | Master Zik | Zeena | Zor | Zavok | Deadly Six | Lava Mountain final boss
Parkour Somersault Kick** | Wall Climb** | Wall Jump** | Wall Run | Vault Dash*
Bounce Attack** | Charged Dash** | Double Jump | Flying Kick* | Grinding | Run | Sky Dive | Spin Dash | Spin Jump
Wisps White* | Cyan | Yellow | Indigo | Crimson* | Magenta* | Green* | Black*^ | Red** | Ivory** | Gray**
Color Powers Cyan Laser | Yellow Drill | Indigo Asteroid | Crimson Eagle* | Magenta Rhythm* | Green Hover* | Black Bomb*^ | Red Burst** | Ivory Lightning** | Gray Quake**
RC Vehicles Helicopter RC Vehicle | Fighter Jet RC Vehicle | Stealth Jet RC Vehicle | Hovercraft RC Vehicle | UFO RC Vehicle | Balloon RC Vehicle | Omochao RC Vehicle
** Materials Green Material** | Yellow Material** | Blue Material** | White Material** | Iron Material** | Black Material** | Red Material** | Bronze Material** | Silver Material** | Gold Material**
English Voice Actors
Roger Craig Smith ( | Sonic) Mike Pollock ( | Eggman) Kate Higgins ( | Tails) Travis Willingham ( | Knuckles, Zavok) Cindy Robinson ( | Amy) Kirk Thornton ( | Orbot, Master Zik) Wally Wingert ( | Cubot) Liam O'Brien ( | Zazz) Patrick Seitz ( | Zomom) Stephanie Sheh ( | Zeena) Sam Riegel (
Japanese Voice Actors
Junichi Kanemaru ( | Sonic) Chikao Ōtsuka ( | Eggman) Ryo Hirohashi ( | Tails) Nobutoshi Kanna ( | Knuckles) Taeko Kawata ( | Amy) Mitsuo Iwata ( | Orbot) Wataru Takagi ( | Cubot) Jōji Nakata ( | Zavok) Yutaka Aoyama ( | Zazz) Yumi Tōma ( | Zeena) Mugihito ( | Master Zik) Chafūrin ( | Zomom) Yūki Tai (
Aqua Shield* | Archie Sonic Halloween Comic Fest 2013 | Asteroid Ring | Auto Running* | Balloon* | Bell* | Bonus Points | Cacophonic Conch | Cannon* | Casino Tokens* | Chaos Emeralds | Conveyor Belt* | Countdown Numbers* | Dash Panel | Extractor | Flame Shield* | Flipper | Flower Cannon | Flywheel** | Freezing Machine** | Gallery | Havok | Lost Hex | Miles Electric | Minecart | Moon Mech | Pinball Shooter* | Planetoid Spring* | Prism | Script | Slot Machine* | Snowball | Snowball Sonic* | Sphere** | Spring | Tails' Lab** | Thunder Shield* | Time Attack * | Totem Pole | Truffle Cannon* | Virtual Hedgehog* | Windmill* | Wisp Away* | Without Boundaries: Sonic Lost World Original Soundtrack
"*" Exclusively to
Wii U version "**" Exclusive to Nintendo 3DS version "^" Exclusive to the Wii U version and downloadable content.