Sonic Adventure: Chaos Unleashed is an action, adventure, and platformer fan game created by Sonic Team and is the first game of the Sonic Adventure Series released in December 22, 2015. It is a re-imagined version of Sonic Adventure, which will include enhanced graphics, added characters, new voice actors, new dialogue, revised story, added content, and improved camera angles. It is followed up with the sequel Sonic Adventure 2: Project Shadow, a re-imagined version of Sonic Adventure 2.

Sonic Adventure: Chaos Unleashed
Sonic Team
Release Date
December 22, 2015
Action, Adventure, Platforming
Xbox One, PlayStation 4, Wii U
E10 for Everyone 10+
Preceded by
Sonic 3 & Knuckles (de facto), Sonic Advance 2 (chronologically)
Followed by


Sonic's Story

Main article: Sonic Adventure: Chaos Unleashed/Sonic's Story

Play as Sonic as he goes on a journey to find the Chaos Emeralds before Dr. Eggman could use them to power up a mysterious water creature named Chaos.

Tails' Story

Main article: Sonic Adventure: Chaos Unleashed/Tails' Story

Play as Tails as he joins along Sonic in their quest to find the Chaos Emeralds as well as learning to become independent.

Knuckles' Story

Main article: Sonic Adventure: Chaos Unleashed/Knuckles' Story

Play as Knuckles as he sets on a mission to collect all of the missing pieces of the Master Emerald.

Amy's Story

Main article: Sonic Adventure: Chaos Unleashed/Amy's Story

Play as Amy as she meets a young bird and resolves to return it to its family while evading from one of Eggman's robots named Zero.

Big's Story

Main article: Sonic Adventure: Chaos Unleashed/Big's Story

Play as Big as he searches for his amphibian pet, Froggy.

Gamma's Story

Main article: Sonic Adventure: Chaos Unleashed/Gamma's Story

Play as E-102 Gamma as he serves Eggman's goals, but eventually turns against his creator.

Super Sonic Story

Main article: Sonic Adventure: Chaos Unleashed/Super Sonic Story

Play this last conclusive story after finishing the other six.


Playable Characters

  • Sonic the Hedgehog
  • Miles "Tails" Prower
  • Knuckles the Echidna
  • Amy Rose
  • Big the Cat
  • E-102 Gamma
  • Super Sonic (After completing the 6 stories)
  • Cream the Rabbit (After completing the Last Story)
  • Metal Sonic (After getting all emblems)

Non-Playable Characters

  • Dr. Eggman
  • Chaos
  • Tikal the Echidna
  • Chao
  • Pachacamac
  • Zero
  • E-100 Series
  • Vanilla the Rabbit
  • Orbot
  • Cubot


Sonic's Gameplay

Homing Attack A + A
Spin Dash B Button
Light Speed Dash Hold B + Release after charged (Light Speed Shoes required)
Light Speed Attack Hold B + Release when nearby enemy (Ancient Light required)

Tails' Gameplay

Fly A + A
Tail Swipe B Button
Rapid Tail Swipe Hold B (Rhythm Badge required)
Rolling B while running

Knuckles' Gameplay

Glide A + A
Punch B Button
Punch Combo B (3x)
Dig A and B simultaneously (Shovel Claw required)
Rolling B while running
Maximum Heat Knuckles Attack Hold B + Release when nearby enemy (Fighting Gloves required)

Amy's Gameplay

Hammer Attack B
Mid-Air Hammer Attack A + B
Running Hammer Attack B while running
Spinning Hammer Attack Hold B + Directional Pad (Warrior Feather required)

Big's Gameplay

Big's gameplay has some major changes. Instead of the fishing gameplay which is what many players of the original Sonic Adventure detest, Big will use his fishing rod to get through various obstacles and is less slower. In short, Big's gameplay is similar to his gameplay from Sonic Heroes.

Rod Attack B Button
Belly Flop A + B
Lure Attack Hold B button + Release

Gamma's Gameplay

Shoot Hold B + Release
Hoover A + A (Jet Booster required)

Cream's Gameplay

Fly A + A
Chao Attack B

Adventure Fields

  • Station Square
  • Mystic Ruins
  • Mystic Ruins (The Past)
  • Egg Carrier

Action Stages

The 11 stages are retained. Note that if you complete all 6 stories, you can have access to play all stages with any character.

  • Emerald Coast
  • Windy Valley
  • Casinopolis
  • Ice Cap
  • Twinkle Park
  • Speed Highway
  • Red Mountain
  • Sky Deck
  • Hot Shelter
  • Lost World
  • Final Egg


  • Chaos 0 - Sonic
  • Chaos 2 - Knuckles
  • Chaos 4 - Sonic, Tails, and Knuckles
  • Chaos 6 - Sonic, Knuckles, and Big
  • Perfect Chaos (Final Boss) - Super Sonic
  • Egg Hornet - Sonic, Tails
  • Egg Walker - Tails
  • Egg Viper - Sonic
  • Zero - Amy
  • E-101 Beta - Gamma
  • E-103 Delta - Gamma
  • E-104 Epsilon - Gamma
  • E-105 Zeta - Gamma
  • E-101 mkII - Gamma

Character Bosses

Unlike the original game, character bosses are more exciting and challenging.

  • Sonic - Knuckles, Gamma
  • Knuckles - Sonic, Tails, Gamma
  • Gamma - Sonic, Tails, Knuckles



The main mode of the game. Play 6 characters in their respective stories, and unlock the Last Story.


This mode includes playing action stages, sub-games, and boss battles.


Coming from Sonic Adventure DX: Director's Cut, This mode includes completing 60 various missions with the characters.

Chao Garden

This is where you go and raise your Chao in various Chao Gardens in Adventure Fields such as Station Square, Mystic Ruins, and the Egg Carrier.



  • Light Speed Shoes
  • Crystal Ring
  • Ancient Light


  • Jet Anklet
  • Rhythm Badge


  • Shovel Claw
  • Fighting Gloves


  • Warrior Feather
  • Long Hammer


  • Life Belt
  • Power Rod


  • Jet Booster
  • Laser Blaster


Selecting this allows you to see features such as Sound Test, Character Bios, and Story Cutscenes.


This section allows you to adjust features such as language voice overs, voice text, memory card data, and vibration.

Voice Actors

Here are the list of voice actors for the re-imagined Sonic Adventure.

Voice Actors Characters
Roger Craig Smith Sonic the Hedgehog
Kate Higgins Miles "Tails" Prower
Travis Willingham Knuckles the Echidna
Cindy Robinson Amy Rose
Kyle Hebert Big the Cat
Andrew Rannells E-102 Gamma, E-101 Beta, E-103 Delta, E-104 Epsilon, E-105 Zeta
Mike Pollock Dr. Eggman
Karen Neill Tikal the Echidna
Carter Cathcart Pachacamac
Michelle Ruff Cream the Rabbit, Vanilla the Rabbit
Kirk Thornton Orbot
Wally Wingert Cubot


Here are the links showing the scripts 7 stories.

Community content is available under CC-BY-SA unless otherwise noted.