Unlike the games before it, Guitar Hero World Tour has an 8 digit sequence to input cheats, and chords are not available. Green through Blue frets are inputted and Orange is not used when inputting cheat codes.
The "Large Gems" cheat has been taken off, as well as "No Fail" and "Precision Mode" have been taken off too. The "Unlock All Songs" cheat has been renamed to "Quickplay Songs" that can toggled on and off, but "Pull Me Under" is not unlocked with that cheat and can only be unlocked by completing any Career mode. Also, some cheats unlocks hidden rockers that can only be unlocked by cheats: Aaron Steele, Johnny Viper, Nick, and Rina.
This cheat disables the unlock of achievements while it's active.
Your scores will not be saved on the leaderboard.
This cheat makes all cash earnings to be $0 when playing Drums.
This cheat does not work in Career (solo or band) or online play.
Extra Line 6 Tones! (PC, PS3, X360)
G→R→Y→B→R→Y→B→G
Unlocks extra guitar effects in the Music Studio for Lead Guitar and Rhythm Guitar.
This cheat is always active.
Flame Color
G→R→G→B→R→R→Y→B
Alters the color of the flame on top of your frets when playing notes.
Alters the color of the Star Power Overdrive that is on the side of the highway when activating Star Power.
Colors you can choose from are: Normal, Pink, Stealth, Eggs & Bacon, Old Glory, Solid Gold, Platinum, Diabolic, Toxic Waste, Black, Pastel, Dark, and Outline.
Gem Color
B→R→R→G→R→G→R→Y
Alters the color of the notes on the highway (except when Star Power is activated).
Alters the color of your fret bar.
Colors you can choose from are: Normal, Pink, Stealth, Eggs & Bacon, Old Glory, Solid Gold, Platinum, Diabolic, Toxic Waste, Black, Pastel, Dark, and Outline.
HyperSpeed
G→B→R→Y→Y→R→G→G
Unlocks "HyperGuitar", "HyperDrums", and "HyperBass" cheats.
Toggling through numbers 1–5 stretches and increases the scrolling speed of the highway for that instrument (HyperGuitar for Guitar, HyperDrums for Drums, and HyperBass for Bass), as well as distancing notes away accordingly. The higher number, the more the highway stretches and speeds up.
HyperSpeed 2 is often considered by players to be a good balance of distancing notes and reacting to them on screen.
Invisible Rocker
G→R→Y→Y→Y→B→B→G
Makes all band members invisible.
"Air Instruments" and "Invisible Rocker" cannot be enabled simultaneously.
Makes the highway and heads-up displays (HUDs) invisible, revealing only the stage.
This cheat makes the game harder to play, in which you will have to guess notes at the right time by memory and you can't see how well you're performing.