Sonic the Hedgehog must fight back when Dr. Eggman releases Dark Gaia by turning Sonic into a werewolf.


(scenario writer), (characters and universe)




Credited cast:
Sonic the Hedgehog / Sonic the Werehog / Professor Pickle's Assistant (voice)
Amy Palant ...
Dan Green ...
Professor Pickle / Ice Cream Man / Additional Voices (voice) (as Jay Snider)
Dr. Ivo 'Eggman' Robotnik / Zonshen (voice)
Tony Salerno ...
Chip (voice)
Amy Rose (voice) (as Lisa Orlitz)
Christopher Collet ...
Orbot / Additional Voices (voice) (as Chris Collet)
Rest of cast listed alphabetically:
Tomo Adachi ...
Additional Voices (voice)
Eisuke Asakura ...
Additional Voices (voice)
Miho Hino ...
Additional Voices (voice)
Ryô Hirohashi ...
Yoshiyuki Kaneko ...
Additional Voices (voice)
Jun'ichi Kanemaru ...
Etsuko Kato ...
Additional Voices (voice)
Taeko Kawata ...
Amy Rose (voice) (as Taeko Kawada)


Dr. Eggman is the primary antagonist for Sonic Unleashed. In this installment, Dr. Eggman has managed to shatter the planet into pieces, and it is up to Sonic to return the seven broken continents back to normal by retrieving the Chaos Emeralds and activating their power. Written by Wikipedia

Plot Summary | Add Synopsis


The difference is day and night


E10+ | See all certifications »

Parents Guide:






Release Date:

18 November 2008 (USA)  »

Also Known As:

Sonic Adventure 3  »

Company Credits

Production Co:

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Technical Specs


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Did You Know?


Originally planned as the new installment of the Sonic Adventure Series. See more »


Sonic loses his gloves when he become the were-hog. They're even shown to be destroyed in the opening movie. However, when he changes back, the gloves return. See more »


Followed by Sonic Colors (2010) See more »


Dear my Friend
Performed by Brent Cash
Music and Arrangement by Mariko Nanba
Lyrics by Candy Y
Arranged by Takahito Eguchi
Co-Arranged by Mariko Nanba
Courtesy of Marina Records
See more »

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User Reviews

Best Sonic Game along with Sonic '06
1 August 2014 | by (Norway) – See all my reviews

For the record, Sonic Unleashed is a very awesome and fun game with good controls, awesome graphics, beautiful music and cool gameplay, the game starts off with Eggman trying the make the world shattered into pieces by help of a monstrous Dark Gaia, then Sonic comes and gets turned into a werehog.

This game is awesome, original and clearly the best sonic game in my top 5 list, the game's bosses are cool, gameplay awesome and controls no doubt, it's the best. No glitches, no problems and no harder levels except for the final boss where you need to click 50 times on the square or x button, wii version better


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