Guitar Hero 3: Legends of Rock - Cheat mode

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. Note: This code cannot be disabled once it is activated.

All items:
Press [Green Red Blue Orange], [Green Red Yellow Blue], [Green Red Yellow Orange], [Green Blue Yellow Orange], [Green Red Yellow Blue], [Red Yellow Blue Orange], [Green Red Yellow Blue], [Green Yellow Blue Orange], [Green Red Yellow Blue], [Green Red Yellow Orange], [Green Red Yellow Orange], [Green Red Yellow Blue], [Green Red Yellow Orange]. Note: There will be no sound while entering the four note "chords". Enter the shop in Career mode to access all items. This code cannot be disabled once it is activated.

Bret Michaels as the singer:
Press [Green Red] three times, [Green Blue] three times, Red Blue, Red3, Red Blue, Red3, Red Blue, Red3.

Easy Expert mode:
Press Green Red, Green Yellow, Yellow Blue, Red Blue, Blue Orange, Yellow Orange, Red Yellow, Red Blue. This mode increases the size of the timing window. Note: This code cannot be used in Career mode.

No fail:
Press Green Red, Blue, Green Red, Green Yellow, Blue, Green Yellow, Red Yellow, Orange, Red Yellow, Green Yellow, Yellow, Green Yellow, Green Red. Note: This code cannot be used in Career 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.

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:
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.

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

Lou: Successfully complete Career mode to unlock Lou for purchase at the store for 15,000. Lou comes with his skeleton guitar.

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 basses:
Successfully complete the indicated task to unlock the corresponding bass:

Beach Life: Successfully complete Co-op mode on the Hard difficulty setting.

Neversoft Skateboard: Successfully complete Co-Op mode on the Expert difficulty setting with a "Five Star" rank on all songs.

PendulAxe: Successfully complete Co-op mode on the Expert difficulty setting.

Tiki Fortune 4: Successfully complete Co-op mode on the Easy difficulty setting.

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

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

Distant Visitor: Successfully complete Career mode on the Expert difficulty setting.

El Jefe: Get a "Five Star" rank on all the songs on the Expert difficulty setting in Career mode.

Jolly Roger: Get a "Five Star" rank on all the songs on the Medium difficulty setting in Career mode.

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

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

Risk Assessment: Successfully complete Career mode on the Expert difficulty setting.

Radioactive: Successfully complete Co-op Career mode on the Hard difficulty setting.

Rojimbo: Successfully complete Career mode on the Hard difficulty setting.

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

Tiki Face: Get a "Five Star" rank on all songs on the Hard difficulty setting in Career mode.

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.

Songs:
The following songs can be unlocked in the game:

An Endless Sporadic - "Impulse"
Backyard Babies - "Minus Celsius"
Bret Michaels Band - "Go That Far"
Die Toten Hosen - "Hier Kommit Alex"
Dragonforce - "Through the Fire and the Flames"
Fall of Troy - "FCP Remix"
Gallows - "In the Belly of a Shark"
The Hellacopters - "I'm in the Band"
Heroes del Silencio - "Avalancha"
In Flames - "Take This Life"
Kaiser Chiefs - "Ruby"
Killswitch Engage - "My Curse"
LA Slum Lords - "Down N Dirty"
Lacuna Coil - "Closer"
Lions - "Metal Heavy Lady"
NAAST - "Mauvis Garcon"
Prototype - "The Way It Ends"
Revolverhead - "Generation Rock"
Rise Against - "Prayer of the Refugee"
Scouts of St. Sebastian - "In Love"
Senses Fail - "Can't Be Saved"
The Sleeping - "Don't Hold Back"
The Stone Roses - "She Bangs the Drums"
Superbus - "Radio Song"