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Proto:Guitar Hero

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This page details one or more prototype versions of Guitar Hero.

The September 3, 2005 prototype build of Guitar Hero was leaked as part of Project Deluge, released through Hidden Palace's website and archive.org on March 20, 2021. Nothing was known about this build prior to its release, although other beta versions of this game had been seen in marketing material before.


GH2 greennote.png
whos gurney?

General Differences

  • The HOPO threshold in this version of the game is stricter than retail; 159 ticks (1 tick less than a 12th note), vs 170 in retail. Charts where this adjustment is particularly easy to spot are You Got Another Thing Comin and Texas Flood on Expert.
  • Notes that follow a chord and have the same color as the chord's lower fret can be HOPOs in this build, unlike retail where they are always strums. A good example of this is Heart Full Of Black on Expert's orange strumming section.
  • Whammy rate is different in proto build, gives you less Star Power.
  • The bug in retail where the 2nd note of the song always appears as a strum, even if it is a HOPO, is NOT in the prototype.


The setlist in the prototype is almost the same as in the final game, with one ordering difference and a few naming differences.

Demo Final
Opening Licks
I Love Rock & Roll I Love Rock & Roll
I Wanna Be Sedated I Wanna Be Sedated
Smoke On The Water Thunder Kiss 65
Thunderkiss 65 Smoke On The Water
Infected Infected
Amp-Warmers Axe-Grinders
Iron Man Iron Man
More Than A Feeling More Than A Feeling
You Got Another Thing Comin' You Got Another Thing Comin'
Take Me Out Take Me Out
Sharp Dressed Man Sharp Dressed Man
String Snappers Thrash and Burn
Killer Queen Killer Queen
Hey You Hey You
Stellar Stellar
Heart Full of Black Heart Full of Black
Symphony Of Destruction Symphony Of Destruction
Thrash and Burn Return of the Shred
Ziggy Stardust Ziggy Stardust
Fat Lip Fat Lip
Cochise Cochise
Take It Off Take It Off
Unsung Unsung
Return of the Shred Fret-Burners
Spanish Castle Magic Spanish Castle Magic
Higher Ground Higher Ground
No One Knows No One Knows
Ace Of Spades Ace Of Spades
Crossroads Crossroads
Relentless Riffs Face-Melters
Godzilla Godzilla
Texas Flood Texas Flood
Frankenstein Frankenstein
Cowboys From Hell Cowboys From Hell
Bark At The Moon Bark At The Moon

The "Amp-Warmers", "String Snappers" and "Relentless Riffs" tier names would later be used in Guitar Hero II.