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In this version of Sonic Unleashed Eggman manages to defeat Sonic, using the tremendous power of the Chaos Emeralds to entrap him. The sheer force of the attack had also broken down the planet into pieces, and released the mysterious dark creature called Dark Gaia from within the depths. Eggman then leaves Sonic trapped along on the broken planet, along with the now-drained Chaos Emeralds. It is now up to Sonic to retrieve and recharge the drained Chaos Emeralds, save the planet, recapture Dark Gaia, and defeat Eggman for good.

The game features both daytime levels, which focuses on Sonic's overdrive speed, and nighttime levels, which are more combat-focused, as Sonic transforms into a fearsome-looking yet powerful Werehog beast, as a side-effect of the Chaos Emerald attack he had suffered from.

The PS2 and Wii versions feature an almost completely new mix of levels as well as a different game engine.


There are no user screenshots for this game

Promo Images

Sonic: Unleashed Screenshot
Sonic: Unleashed Screenshot
Sonic: Unleashed Screenshot
Sonic: Unleashed Screenshot


Alternate Titles

  • "Sonic: Unleashed - La Malédiction du Hérisson" -- French title

Part of the Following Groups

User Reviews

Right game, wrong version? PlayStation 2 Bob the Stickman (299)

Critic Reviews

NZGamer Wii Dec 15, 2008 7.5 out of 10 75
N-Europe Wii Dec 31, 2008 7 out of 10 70 Wii Dec 02, 2008 7 out of 10 70
Gemakei (formerly Zentendo) Wii Jan 08, 2009 7 out of 10 70
IGN PlayStation 2 Nov 18, 2008 7 out of 10 70 PlayStation 2 Dec 02, 2008 13 out of 20 65
Cubed3 Wii Jan 29, 2009 6 out of 10 60 PlayStation 2 Jan 07, 2009 59 out of 100 59
Game Shark Wii Dec 08, 2008 C 50
Armchair Empire, The Wii Jan 25, 2009 5 out of 10 50


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Contributed to by qwertyuiop (33315) and Jeanne (76484)