At the main menu, select "Options", "Cheats", "Enter New Cheat", then enter one of the following codes to activate the corresponding cheat function. Note: Each note or chord must be strummed.

All songs in Quick Play mode -

• Press Yellow + Orange, Red + Blue, Red + Orange, Green + Blue, Red + Yellow, Yellow + Orange, Red + Yellow, Red + Blue, [Green + Yellow] two times, [Yellow + Blue] two times, [Yellow + Orange] two times, Yellow + Blue, Yellow, Red, Red + Yellow, Red, Yellow, Orange to unlock all songs in Quick Play mode.

Air guitar -

• Press Blue + Yellow, [Green + Yellow] two times, [Red + Blue] two times, [Red + Yellow] two times, Blue + Yellow, [Green + Yellow] two times, [Red + Blue] two times, [Red + Yellow] two times, [Green + Yellow] two times, [Red + Yellow] two times.
  

Flaming heads -

• Press Yellow, Orange, Yellow(2), Orange, Yellow(2), Orange.
  

Hyperspeed mode -

• Press Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow. This mode makes the charts faster. There are five Hyperspeed levels. Press Green on the Hyperspeed option at the "Cheats" menu to cycle through them.

Precision mode

• Press [Green + Red] three times, [Red + Yellow] two times, [Red + Blue] two times, Yellow + Blue, Yellow + Orange, Yellow + Orange, [Green + Red] three times, [Red + Yellow] two times, [Red + Blue] two times, Yellow + Blue, [Yellow + Orange] two times.

Performance mode -

Bonus characters - Successfully complete the indicated task to unlock the corresponding character:

Press Red + Yellow, Red + Blue, Red + Orange, Red + Blue, Red + Yellow, Green + Blue, Red + Yellow, Red + Blue. This mode makes everything disappears except for the performance.

Through The Fire And The Flames song - Successfully complete Career mode on any difficulty setting to unlock Through The Fire And The Flames song by Dragonforce.

Lou: Successfully complete Career mode to unlock Lou for purchase at the store for $15,000. Lou comes with his skeleton guitar and two costumes (original devil outfit and werewolf viking).

Slash: Defeat Slash in the Boss battle in Career mode to unlock him for purchase at the store for $10,000.

Tom Morello: Defeat Tom Morello in the Boss battle in Career mode to unlock him for purchase at the store for $10,000.

Bonus guitars - Successfully complete the indicated task to unlock the corresponding guitar:

Bat: Get a "Five Star" rank on all songs on the Easy difficulty setting.

Moon Shot: Successfully complete Career mode on the Easy difficulty setting.

Nemesis 13: Successfully complete Co-op Career mode on the Medium difficulty setting.

Saint George: Successfully complete Career mode on the Medium difficulty setting.

Battle Lou in Expert mode with Easy mode notes - When the battle with Lou starts at the end of the game on Expert mode, strum without holding any frets until you lose. At the "Game Over" screen, select "Tutorial". Pick the tutorial for Guitar Battle, and play through it until the "Lesson Complete" message appears. As soon as the next fret board appears, pause the game, and exit to return to the lesson menu. Then, press Red to return to the list of songs. The battle with Lou will be highlighted. Choose the song, and Lou's notechart will now be set to Easy mode. Note: Your notechart will still be in Expert mode, but his will be in Easy mode.