The No Fail cheat code appears in Guitar Hero III: Legends of Rock and when applied, no matter how many mistakes that have been done, it won't decrease your Rock Meter. This also comes with a consequence while playing, as all high scores will be turned off, and on the XBOX360, you won't be able to recieve any achievments. This cheat does not work in Career Mode.

This cheat is also used in the original Guitar Hero for PS2 however this cheat can be used in Career Mode.

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