Sonic Unleashed (Xbox 360 preview build)

From Sonic Retro

Preview Build TitleScreen SU.png
Sonic Unleashed (Xbox 360 preview build)
Prerelease of: Sonic Unleashed
System: Xbox 360
Found by: N!NJA
The Sonic Unleashed Xbox 360 Preview Build is a pre-release version of Sonic Unleashed (Xbox 360 version). It was released by N!NJA on December 6, 2016 on the
Sonic Retro
Sonic Retro forums

Build date

  • Disc label: 1/09/2008
  • XEX: Sun Aug 31 22:41:02 2008
  • Dev Menu: Revision 6005 Mon Apr 21 06:50:59 2008.

All three of these dates are different, which makes it hard to determine the actual build date. The Dev Menu date appears to be a Subversion timestamp, so that could be the date of the actual code; the XEX date would then be when the game was actually compiled. The disc label date is one day after the XEX, so that would be when it was actually burned to disc.


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Unused content

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  • There's an early version of Savannah Citadel Day in the files. It doesn't have any geometry or textures, but the collision and the object layout is present. It is very similar to the version of the level showcased in a trailer[1].
  • Within the files of Savannah Citadel Day Act 2 there is an unused object layout, this layout contains rings of rotating spike balls, buried flamethrowers, and a row of springs on an untextured platform. This layout also causes massive frame drops[2]
  • There's a folder named "#ActN_AfricaEvil_Dje_20080619" which contains an early object layout for Savannah Citadel Night Act 1, with untextured items and an early goal ring[3].
  • "Act 4" of Savannah Citadel Night contains an unused layout before the start of the stage, placing this layout over act 1s terrain reveals it mostly lines up, but deviates after a while. This implies that Act 1 and Act 4 where once one stage, but were split in half early on[4].
    • Additionally the name of Act 4 is "#ActN_AfricaEvil_Bao_20080619" rather than "ActN_SubAfrica_03" as it is in the final, further implying the split.
    • In development screenshots of Savannah Citadel night the door frames are much smaller, and seem to fit the size of the smaller doors present in the unused layout[5].

External links


Sonic Unleashed (Xbox 360 preview build), prototype version of Sonic Unleashed
Preview Build TitleScreen SU.png

Main page | Comparisons | Hidden content

Part of Sonic Unleashed development

Sonic Unleashed
SonicUnleashed title.png

Main page
Downloadable content

Promotional material
Magazine articles

Hidden content
Technical information


Sonic the Hedgehog games for the following systems
Xbox 360
 2006  Sonic the Hedgehog     2008  Sonic Unleashed     2009  Sonic's Ultimate Genesis Collection     2010  Sonic & Sega All-Stars Racing | Sonic Free Riders     2011  Sonic Generations     2012  Sonic & All-Stars Racing Transformed    
 Demos  Sonic the Hedgehog (2006 Xbox Live demo) | Sonic Generations (Demo 1/2)