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Orbinaut
From Sonic Retro
Orbinaut is a badnik that appears in more than one game. It's a hovering sphere surrounded by four spiked balls which rotate slowly and are used for both attack and defence, and is apparently based on a sea urchin (the Japanese word for sea urchin is "uni").
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Sonic the Hedgehog
In the Mega Drive version of Sonic the Hedgehog, there are two types of orbinaut. The first appears in Labyrinth Zone, and is referred to as "Unidus" (ウニダス) in the Japanese manual. "Unidus" is red in colour and launches its spikeballs along a horizontal line when Sonic approaches. The second type is found in Star Light Zone, and is known as "Uni-uni" (ウニウニ) in the Japanese manual. It is green in colour and doesn't launch its spikeballs, making it less threatening but harder to kill.
An orange "Uni-uni" also appears in the 8-bit version of Sonic the Hedgehog in Sky Base Zone.
Technical Information
| Game | Object ID # | Code offset | Mappings offset | Compressed art offset | Subparameters |
|---|---|---|---|---|---|
| Sonic the Hedgehog (16-bit) | $60 | $11CCE | $11EEC | $389EE (Nemesis Format, 31 blocks) | $00 - Attacking type $02 - Nonattacking type |
| Sonic the Hedgehog (8-bit) | $35 |
Sonic the Hedgehog 3
A third Orbinaut appears in Sonic the Hedgehog 3's Launch Base Zone and is referenced as Pola (ポーラ) in the Japanese manual. This version is silver-grey and spins faster when Sonic is moving, but doesn't launch its spikeballs. A similar enemy in IceCap Zone, Star Pointer, does launch its spikeballs.
Sonic Adventure
A fourth Orbinaut, also known as Unidus (ウニダス) in the Japanese manual, appears in Sonic Adventure. It's most close in design with the Orbinaut appearing in Sonic 3. It attacks in two ways, either throwing their spike balls at its enemy or by sending them in arcs for a wide radius attack.
| Character | Stage |
|---|---|
| Sonic | Speed Highway |
| Tails | Sky Deck, Speed Highway |
| Knuckles | Speed Highway, Sky Deck |
Sonic Adventure 2
Yet another Orbinaut, also known as E-32 Unidus (ウニダス) in the Japanese manual, appears in Sonic Adventure 2. It's basically the same as the one in Sonic Adventure, but it won't throw its spikes, bustling around randomly instead.
| Character | Stage |
|---|---|
| Tails | Hidden Base |
| Knuckles | Death Chamber |
| Sonic the Hedgehog (16-bit) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Main Article (Genesis) |
Enemies and Obstacles:
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 Main Articles: Advertisements | Sonic the Hedgehog 3 Enemies and Obstacles:
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 Main Article |
Director's Cut  Main Article |
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 Main Article |
Battle  Main Article | Enemies and Obstacles: Badniks:
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GUN Robots:
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Ghosts:
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Games > Game Information > Enemies > Sonic Adventure 2 Enemies
Games > Game Information > Enemies > Sonic Adventure Enemies
Games > Game Information > Enemies > Sonic the Hedgehog 3 Enemies
Games > Game Information > Enemies > Sonic the Hedgehog Enemies
