Song Failure Secret Achievement
Description: unlock a special secret achievement
How to unlock: choose any song during Career Mode and then fail it ten times.

Jolly Roger Guitar
Description: Unlock the Jolly Roger Guitar
How to unlock: Get 5 stars on each song during Career Mode on Medium difficulty

Moon Shot Guitar
Description: Unlock the Moon Shot guitar
How to unlock: Complete Career Mode on Easy.

All Songs (Quick Play Mode)
To unlock all of the game's songs for Quick Play Mode, insert the following notes in the Options menu: Yellow & Orange, Red & Blue, Red & Orange, Green & Blue, Red & Yellow, Yellow & Orange, Red & Yellow, Red & Blue, Green & Yellow x2, Yellow & Blue x2, Yellow & Orange x2, Yellow & Blue, Yellow, Red, Red & Yellow, Red, Yellow, Orange.

PendulAxe Bass
Description: Unlock the PendulAxe Bass
How to unlock: Complete Co-op Mode on expert.

Beach Life Bass
Description: Unlock the Beach Life Bass
How to unlock: Complete Co-op Mode on hard.

Bat Guitar
Description: Unlock the Bat Guitar
How to unlock: Get 5 stars on each song during Career Mode on Easy difficulty

Neversoft Skateboard
Description: Unlock the Neversoft Skateboard
How to unlock: Complete Co-Op Mode on expert with five stars

Performance Mode
To unlock Performance Mode, insert the following notes in the Options menu: Red & Yellow, Red & Blue, Red & Orange, Red & Blue, Red & Yellow, Green & Blue, Red & Yellow, Red & Blue.

Nemesis 13 Guitar
Description: Unlock the Nemesis 13 Guitar
How to unlock: Complete Co-Op Career Mode on any difficulty

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"

Boss Characters
To unlock any boss characters as playable character, simply beat them in the game and they will become unlocked.

Distant Visitor Guitar
Description: Unlock the Distant Visitor Guitar
How to unlock: Complete Career Mode on Expert difficulty

Songs (Normal)
Description: Unlock songs in the normal fashion
How to unlock: Just pass the song successfully. It will thereafter be unlocked.

Tiki Guitar
Description: Unlock the Tiki Guitar
How to unlock: Complete Career Mode on hard with five stars.

No Failure
To make it impossible to fail a song, insert the following code in the in-game cheats menu. Keep in mind that this cheat will not 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
To unlock the Air Guitar, insert the following notes in the Options menu: Blue & Yellow, Green & Yellow x2, Red & Blue x2, Red & Yellow x2, Blue & Yellow, Green & Yellow x2, Red & Blue x2, Red & Yellow x2, Green & Yellow x2, Red & Yellow x2.

Rojimbo Guitar
Description: Unlock the Rojimbo Guitar
How to unlock: Complete Career Mode on Hard difficulty

Saint George Guitar
Description: Unlock the Saint George guitar
How to unlock: Complete Career Mode on Medium

Precision Mode
To unlock Precision Mode, insert the following notes in the Options menu: Green & Red x3, Red & Yellow x2, Red & Blue x2, Yellow & Blue, Yellow & Orange, Yellow & Orange, Green & Red x3, Red & Yellow x2, Red & Blue x2, Yellow & Blue, Yellow & Orange x2.

Guitarists
How to unlock: By beating them in the game and then purchasing them

Tom Morello (of Rage Against the Machine)	$10,000
Slash (of Guns N Roses/Velvet Revolver)	$10,000
MetalHead	$10,000
Lou (the Devil in the game)	$15,000

Battle Lou Easier
Description: Battle Lou in Easy Mode
How to: When the battle with Lou starts (on Expert Mode), strum without holding any frets down. When you lose, select the Tutorial option at the Game Over menu. Do the Guitar Battle Tutorial and play through it in its entirety. After the "Lesson Complete" message appears on-screen and the next fret board appears, pause the game and exit. This will bring you back to the Lessons menu.
From here, press the red button, which will bring you back to the list of songs. The battle with Lou should be highlighted. Choose the song, and Lou's note chart will be set to Easy Mode now. Your note chart will still be in Expert Mode, but Lou's will be in easy mode.

El Jefe
Description: Unlock the El Jefe Guitar
How to unlock: Complete Career Mode on expert with five stars.

Hyperspeed
To unlock Hyperspeed, go to the in-game cheat menu (found under Options) and insert the following cheat on your guitar: Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow.

All Items Available
Description: make every item available at the in-game store
How to: Insert the following lengthy cheat at the in-game cheats menu. Keep in mind that because you're strumming using 4 buttons, no sounds will play. You'll have to check the store when you're done inserting the password to see if it worked: 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

Through the Fire and Flames
To unlock the track "Through the Fire and Flames", beat the game.

Bret Michaels of Poison
To make the singer on stage appear as Bret Michaels of Poison fame, insert the following code at the in-game cheats menu: Green & Red x3, Green & Blue x4, Red & Blue, Red x3, Red & Blue, Red x3, Red & Blue, Red x3.