When you're on the main menu, you need to go to "Options," and then to "Cheats." In this menu, you have to play the right notes on the guitar to unlock cheats. Below is a list of the cheat names, their effects (you can turn them all on and off, except for Unlock Everything), and the corresponding code: (Note: For the colors I've put in brackets, you need to press both of those colors at the same time)
Unlock Everything | All songs, except for "Pandora’s Box," will be unlocked. Note: Once you use this cheat, you can't undo it | (Red Yellow), (Green Red), (Green Red), (Red Yellow), (Red Yellow), (Green Red), (Red Yellow), (Red Yellow), (Green Red), (Green Red), (Red Yellow), (Red Yellow), (Green Red), (Red Yellow), (Red Blue) |
No Fail | You will never fail a song again. Note: This cheat doesn't work in Career Mode | (Green Red), Blue, (Green Red), (Green Yellow), Blue, (Green Yellow), (Red Yellow), Orange, (Red Yellow), (Green Yellow), Yellow, (Green Yellow), (Green Red) |
Air Guitar | The characters on the screen will play air instruments! | (Red Yellow), (Green Red), (Red Yellow), (Red Yellow), (Red Blue), (Red Blue), (Red Blue), (Red Blue), (Red Blue), (Yellow Blue), (Yellow Blue), (Yellow Orange) |
Hyperspeed Mode | The notes will travel faster along the highway, but with more space in between, so the song won't be played faster | (Yellow Orange), (Yellow Orange), (Yellow Orange), (Yellow Orange), (Yellow Orange), (Red Yellow), (Red Yellow), (Red Yellow), (Red Yellow), (Red Blue), (Red Blue), (Red Blue), (Red Blue), (Red Blue), (Yellow Blue), (Yellow Orange), (Yellow Orange) |
Precision Mode | You'll have to play the notes at EXACTLY the right moment, making the game a lot more challenging | (Red Yellow), (Red Blue), (Red Blue), (Red Yellow), (Red Yellow), (Yellow Blue), (Yellow Blue), (Yellow Blue), (Red Blue), (Red Yellow), (Red Blue), (Red Blue), (Red Yellow), (Red Yellow), (Yellow Blue), (Yellow Blue), (Yellow Blue), (Red Blue) |
Performance Mode | You can now play songs without seeing the notes, VERY TOUGH! | (Green Red), (Green Red), (Red Orange), (Red Blue), (Green Red), (Green Red), (Red Orange), (Red Blue) |
Large Gems | The notes will become much larger | Green, Red, Green, Yellow, Green, Blue, Green, Orange, Green, Blue, Green, Yellow, Green, Red, Green, (Green Red), (Red Yellow), (Green Red), (Green Blue), (Green Red), (Blue Orange), (Green Red), (Yellow Blue), (Green Red), (Red Yellow), (Green Red), (Green Yellow) |