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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.


Sonic: Unleashed Wii Mission message
Sonic: Unleashed Wii Loading screen
Sonic: Unleashed Wii You collected Moon Medal
Sonic: Unleashed Wii Choosing Wii icon for save file

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 Jungle Jim (305)

Critic Reviews

Official Nintendo Magazine Wii Nov 28, 2008 79 out of 100 79 PlayStation 2 Dec 15, 2008 7.4 out of 10 74
GameSpy Wii Nov 25, 2008 3.5 Stars3.5 Stars3.5 Stars3.5 Stars3.5 Stars 70 Wii Dec 16, 2008 7 out of 10 70
Gamers' Temple, The PlayStation 2 2008 68 out of 100 68
Game Informer Magazine Wii Sep 22, 2009 6.75 out of 10 68 PlayStation 2 Dec 10, 2008 60 out of 100 60
Game Shark Wii Dec 08, 2008 C 50
NintendoWorldReport Wii Dec 01, 2008 4 out of 10 40
1UP Wii Dec 23, 2008 D 25


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Contributed to by qwertyuiop (37635) and Jeanne (76324)