Sonic Adventure 3 (SA3)/ List of Stages

Sonic Adventure 3 (Sonic Adventure 3 (SA3)) is divided into the Adventure Field, Bosses and Action stages, similarly to the way done in the original Sonic Adventure. Action Stages are the basic playable stages for every character. However not every character has access to every level in the game. Each Action Stage is structured differently for each character, in order to serve their gameplay mechanics. All confirmed stages are listed below.
For info on the stages from the 2015 variant try here:
==Adventure Field==
"Station Square” returns from Sonic Adventure as the one and only Adventure Field for the game. This version of Station Square has been entirely rebuilt and reconstructed to be bigger than ever and feature more side-content and room for more NPCs. Although about the average size of most STH Adventure Fields, Station Square is dense with more things to do than any other Sonic hub world before it. The list of mini-games can be found on the main page.
More on the Adventure Field -> Sonic Adventure 3 (SA3)
==Action Stages==
===Frozen City Siege===
A city/ice/battlefield themed stage taking place at Dawn, reminiscent of Central City or Westopolis from Shadow the Hedgehog. The stage sees the Kitsune robots along the city's outskirts attacking anyone trying to enter. The stages features some sections similar to Speed Highway's "At Dawn" section. 
 	Act 1 	Act 2
Description	Overrun by the Kitsune and their ice firing robots, the player must pass through the outskirts of Station Square into the city-turned-ice-covered battlefield.	Now further into the city's limits, the second act of the stage is a fast-paced rush into the center of town. Amongst its set-pieces is a giant snowball chasing the player, a series tradition followed up on from the dolphin in SA1 and the truck in SA2.
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===Emerald Coast 2.0===
Emerald Coast 2.0 sees the iconic locale from Sonic Adventure, now rebuilt and expanded after the events of the first Sonic Adventure. As such the stage is beach/resort themed. 
 	Act 1 	Act 2 	Act 3
Description	A properly recreated and reconstructed version of the Emerald Coast everyone knows and loves from the original Sonic Adventure. This act of the stage functions as a form of fan service and nostalgia for long-time fans. Much like the original Sonic Adventure, this portion of Emerald Coast blends platforming and speed pretty evenly, even if it leans a bit more towards platforming.	Passed the initial area of Emerald Coast that's been rebuilt is a fully brand new location for the player to get lost in. Although it's perfectly in line with the Emerald Coast we already know, this portion is completely brand new and original, meant to surprise players expecting just a simple recreation of the Sonic Adventure stage. In keeping with the first act, this act balances the platforming and speed pretty evenly.	The third area of Emerald Coast, just beyond the new area is a slower more relaxed, and chilled-out end of the stage taking the player back from the forest area to the resort one.
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===Frosty Dockside===
Frosty Dockside is a harbor/ice/city themed stage that takes place in Station Square. The stage takes place during the day and finds the player traversing through a series of docks, boats and shopping centers.
 	Act 1 	Act 2
Description	A fast-paced act, taking the player through the main dock areas and shopping districts of the frozen-over and under-attack city.	A similarly fast-paced act. This one focuses more on the shopping districts and has several moments where chunks of ice are falling over attempting to crush the player.
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===Barren Mountain===
Barren Mountain is a Snow/Mountain themed level found just beyond the mountains seen in the distance in Emerald Coast. The stage takes place during the day and is very distantly comparable to Act 1 of Red Mountain from SA1. It has an upper act, featuring more plant life and a lower act featuring more platforming and rocky terrain.
 	Act 1 	Act 2
Description	A slower paced act, focused around exploration and platforming.	A fast paced act, focusing on slopes and multiple pathways through the mountain.
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=== Casino Plaza===
Casino Plaza is a Casino/Pinball themed stage. It is rebuilt on top of what was previously Casinopolis in Sonic Adventure. In spite of this the stage shares more in common aesthetically with Casino Park from Heroes, with pinball elements scattered throughout the stage itself.
 	Act 1 	Act 2
Description	 	
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===Sewer Scramble===
TBA
===Cyber Snow===
Cyber Snow is a snow/industrial/technology themed stage accessible from both hubs. The stage is a collection of Ice Caves leading to a large Kitsune headquarters building in a mountain of ice. The stage is mostly snow and industrial related but does feature the use of many kitsune tech related gimmicks. 
===Tropical Greenland===
Tropical Greenland is a stage similar to Tropical Jungle of Sonic 06’ accessible from Station Square.
===Neon Highway===
Neon Highway is a highway level similar to SA1’s Speed Highway and SA2’s Radical Highway, taking place at night with massive skyscrapers. The level is accessed through Station Square. The stage has two acts one amongst the highway of tall buildings and one consisting mostly of just the tallest skyscrapers in the location. The stage is notable for having Inugami (The Giant Wolf Yokai).
===Airship Convoy===
Airship Convoy is an airship/destruction themed stage, distantly reminiscent of Sky Deck from SA1 and Egg Fleet from SH. The stage features the player traveling from the Cyber Snow Base onto The Kitsune battleships (Mostly Act 1) and traveling between battling GUN and Kitsune battleships as they fire at each other and begin taking damage (Mostly Act 2) as the player tries to escape the battle and (in Sonic's case) reach The Egg Carrier.
===Sparkling Cavern ===
Sparkling Cave  is a quartz filled cave themed stage very reminiscent of Quartz Quadrant from Sonic CD appearance wise. The stage is notable for having Ogumo (The Spider Demon) as it’s boss, fought by Tails. It is accessible through the Station Square hub.
===Icy Infiltration===
Icy Infiltration is a nocturnal/ice/industrial themed stage accessible from both hubs. The stage is reminiscent to Ice Factory from Sonic Riders, Frozen Factory from Sonic Lost World or White Acropolis from Sonic 06’. The level is an alternate area of the Kitsune base seen in Cyber Snow. The level is comprised mostly of ice covered courtyards and sharp corridors, heavily secured by Kitsune bots and lower level Botunekos.
===Oil Canyon===
Oil Canyon is a desert/canyon/oil factory themed level. The stage has two acts, one in the deserted canyon area and another in the main oil factory area.
===Egg Carrier Ruins===
Egg Carrier Ruins is an industrial/ruins themed stage accessible from Station Square. The stage is notable for being a destroyed and dilapidated version of The Egg Carrier base from SA1. Being located in a strange breathable bubble underwater near the mystic ruins, the stage has multiple acts meant to replicate areas from the SA1 hub and it’s sub-levels. The level also is notable for being where the boss Ikuchi, the sea/oil serpent is encountered and fought. 
===Port Blank===
TBA
===Snowfall Station ===
TBA
===Core of the Kitsune===
TBA
===Kitsune Space Station===
Space Station is a space/technology/industrial themed level. Similar to the likes of the Ark levels from SA2, Space Station takes place in a labyrinth like Space Station complete with tubes and long winding corridors. The stage also features sections outside the immediate interior of the station. It is only playable as Sonic and encountered in the Final Story.
==Bosses==
===Yokai=== 
* Black Nox (黒夜) (First Battle) (Prologue)
A large, powerful and vaguely humanoid creature. Black Nox has a resemblance to many of the Black Arms aliens from Shadow the Hedgehog. Black Nox has a variety of melee and ranged attacks, using summoned projectiles and tentacles it grows out of the ground, in addition to its own combo of punches and kicks. The first battle is one that is unbeatable, and meant to be lost by the player. The first iteration of Black Nox is fought by Sonic, Tails and Terios.
*Hebi (蛇) (Tropical Greenland)
A large snake creature. Hebi mainly attacks by shooting projectiles out of its mouth and flinging its strong tail and later entire body around the arena. Hebi's has a large red spot on its head which acts as a weak point. Hebi is fought by Sonic, Tails, Knuckles, Rouge and Terios. 
*Inugami (犬神) (Neon Speedway)
A large dog creature. Inugami starts the fight chained to the interior of a big temple, before eventually getting free from it. Inugami's attacks largely revolve around summoning energy/ice projectiles to shoot at the player. Inugami also has several clawing attacks if you get too close. Inugami is a mostly static boss that stays in the same place. Inugami's weak point is it's entire face. Inugami is fought by Sonic, Tails, Knuckles and Terios.
* Ōgumo (大雲) (Sparkling Cavern)
Ōgumo is a large spider creature. It largely spends the fight crawling around the arena, sending several smaller enemies at the player, as well as the occasional projectile. Its entire body causes damage to the player, though it sometimes goes in to a state where its back glows red and can be damaged. Ōgumo is fought by Sonic, Tails and Rouge.
*Nue (奴延鳥) (Oil Canyon)
Nue is a normal sized, nimble tiger creature with wears a Monkey mask. It is considerably more active than the bosses up to this point and spends a lot of time traversing the arena, attempting to attack the player with projectiles and melee attacks. Many of it's melee attacks involve hitting the ground which cause a damaging ripple effect. Its weak point is the mask. Nue is fought by Tails and Rouge.
*Onryō (怨霊) (Icy Infiltration)
Onryō is a normal sized ghost like creature that appears as a human woman. In spite of Onryo's appearance, the creature can also transform its appearance into various others, namely Tails in Sonic's story and Maria in Terios' story. Regardless, its attacks of projectiles and creating various clones remain consistent. It glows red when the player can attack it. Onryo is fought by Sonic, Tails and Terios.
*Ikuchi (イクチ) (Egg Carrier Ruins)
Ikuchi is a massive oil spewing serpent creature. Ikuchi is a unique case in that Ikuchi is actually interatcted with all throughout the second act of Egg Carrier Ruins, trying to intercept and attack the player. Once the player finally gets to the surface of the Egg Carrier, Ikuchi can finally be fought. In many ways Ikuchi is similar to Hebi. Both have weak points on their heads, and attack with projectiles and flinging their bodies around. Ikuchi however is notably most difficult as the Egg Carrier's surface is slippery and Ikuchi leaks oil which slows the player down when flings its body around. Ikuchi is fought by Sonic and Terios. 
*Kamaitachi (かまいたち) (Port Blank)
Kamaitachi is a normal sized weasal like creature with dual blades. Much like Nue, Kamaitachi rushes around his fight arena, quickly attacking the player before hopping into a portal and out of another elsewhere. Kamaitachi also sends several smaller enemies after the player. Kamaitachi's attacks can be tricky but has an always open weak point on its head that makes the fight very beatable. Kamaitachi is fought by Sonic and Terios.
*Black Nox (黒夜) (Core of Kitsune)
Block Nox's second fight is almost identical to his first, except with more modest damage and more rings for the player, allowing the fight to be reasonably beatable. Black Nox's second fight is accessible with Sonic, Tails and Terios.
* Oni-bot (鬼 )
A large, powerful humanoid robot. Oni-bot attacks mainly with melee attacks in the form of punches and kicks as well as robotic tentacles on its back. Oni-bot also has ranged attacks in the form of lasers it can fire. In spite of its size and well rounded arsenal, many of its attacks can be countered, allowing for the robot to overheat and opening it up to attacks. Oni-bot is fought only by Rouge. 
===E-Series===
The E-Series bosses are various robot bosses. They were created and are only fought by Dr. Eggman. Most are unnotable, however Omicron appears as the likely inspire for Eggman to create E-123 Omega in Heroes.
*E-106 Eta (Oil Canyon)
*E-107 Theta (Sewer Scramble)
*E-108 Iota (Casino Plaza)
*E-109 Kappa (Frozen City Seige)
* E-110 Lambda (Barren Mountain)
*E-111 Mu (Sparkling Cavern)
*E-112 Nu (Port Blank)
*E-113 Xi (Snowfall Station)
*E-114 Omicron (Core of the Kitsune)
===Miscellaneous=== 
*Myria M. Prower
The game's main antagonist, Myria is a Kitsune, a normal sized fox person with two tails. Myria is a final boss for many, and a precursor boss for Sonic. Myria attacks with a bunch of tail and combat based melee attacks, as well as with several projectile attacks, including summoned ice and energy beams. He is easily one of the game's hardest bosses. Myria is fought by Sonic, Knuckles and Rouge. 
* Super Shadow
Fought in the final story. Super Shadow is a boss fought exclusively by Super Sonic. The fight is used mainly to get the player acclimated to the controls of Super Sonic. Nonetheless, Super Shadow still puts up a tough fight. His offense is strong in regards to melee and he shoots chaos spears as ranged attacks. 
*Kitsune Myria (Final Boss)
The game's true final boss. Kitsune Myria appears similar to his previous appearance but with Super form properties and nine tails. He is fought similarly to The Final Hazard from Adventure 2. Throughout the battle, the playable character switches between Super Sonic and Kitsune Tails. The fight is similar to Super Shadow but considerably more difficult. Kitsune Myria has far more attack options and better defensive abilities.
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