Guitar Hero (lost original beta build/unused beta elements of PlayStation 2 rhythm game; 2005)

The video of the beta build.

In 2005, the first Guitar Hero rocked the masses (see what i did there?) with it's innovative guitar controller and gameplay style. Critics gave it overwhelmingly positive scores, and for a point in time it was the best selling PS2 game. (Although eventually that was taken by Grand Theft Auto: San Andreas.) However, the original beta build of Guitar Hero was completely different from the final build. The beta remained in obscurity until a video was posted in 2007 of it.

Interesting differences in the video include:

The colors of the frets are the colors of the rainbow, with the exception of the colors indigo and violet.

The song Spanish Castle Magic was going to have vocals, as seen in the video.

There are no hammer ons or pull offs.

The graphics and animations are different.

The score gets built up in sections and then added to the current score, like the game Karaoke Revolution.

There is no star power anywhere.

The star power bar was a bar that showed how well you were doing during a scoring section.

The only evidence for this build existing was the 1 minute and 28 second video showing Spanish Castle Magic with vocals. The beta build has not been resurfaced anywhere, and there is no other screenshots or videos.

Sources

[1]