Note: This game is also known as - Guitar Hero: Greatest Hits

At the main menu, select "Options", "Cheats", "Enter New Cheat", then enter one of the following codes to unlock the corresponding cheat option. If you entered the code correctly, a message will appear.

Always Slide - Press Blue, Yellow, Red, Green, Blue, Green(2), Yellow. This mode turns all guitar notes (not chords) into touch pad sliding notes connected by purple lines. It has no effect online. Note: This code prevents trophies from being earned.

Always Drum Fill - Press Green(2), Red (2), Blue(2), Yellow(2).

Auto Kick - Press Blue, Green, Red, Yellow, Red, Yellow, Red, Yellow. This mode automatically plays the bass pedal for the drummer. It has no effect online. Note: This code prevents trophies from being earned.

Hyperspeed - Press Red, Green, Blue, Yellow, Green, Yellow, Red(2).

Line 6 Effects - Press Green, Red, Yellow, Blue, Red, Yellow, Blue, Green to unlock additional Line 6 effects in the Music Studio.

Performance mode - Press Blue, Red, Yellow(2), Red(2), Yellow(2). This mode allows you to play without seeing the note highway or rock meter.

Invisible Rocker - Press Blue, Red(4), Yellow, Blue, Green.
Air Instruments - Press Yellow, Red, Blue, Green, Yellow, Red(3).

Flame Color - Press Yellow, Blue, Red, Green, Yellow, Red, Green, Blue.
Gem Color - Press Red(3), Blue(3), Yellow, Green.
Star Color - Press Green, Red, Green, Yellow, Green, Blue, Yellow, Red.
Vocal Fireball - Press Green, Blue, Red(2), Yellow(2), Blue(2).

Trophies - Successfully complete one of the following tasks to get a trophy:

The Greatest Journey In History (Bronze): Complete a song in every venue.
You Cannot Beat Me (Bronze): Win an online Pro Face-Off match by 25,000 points or more.
Jaw Dropper (Bronze): Win an online Face-Off match by 25,000 points or more.
You Should Be Afraid (Bronze): Win an online Face-Off match.
One For All (Bronze): Complete a song in a Band (4 players).
Rocker's Guide To Godhood (Bronze): Complete the Career Tutorial.
The Greatest Crew (Bronze): Complete a song with all Band members on Expert (4 player Band).
Golden Fingers (Bronze): Perform as the Guitarist.
Play With Me (Bronze): Play 20 online matches.
Low-Pitched King (Bronze): Complete the Career as the Bassist.
Thunder Kissing (Bronze): Trigger Star Power simultaneously (4 player Band).
Craving For More (Bronze): Download a song from GHTunes(SM).
I Wanna Rock (Bronze): Complete a song with any instrument on any difficulty in local Quickplay or Career.
Promising Diva (Bronze): Perform as the Vocalist.
Band Leader (Bronze): Score the highest individual score in a 4 players Band.
Unyielding (Bronze): Complete the Career as the Drummer.
Wondrous Strummer (Bronze): Complete the Career as the Guitarist.
Bark At The Moon (Bronze): Complete the Career as the Vocalist.
Unnoticed Presence (Bronze): Perform as the Bassist.
War Apparatus (Bronze): Complete a song on Expert + (Drums only).
Master Craftsman (Bronze): Create a new custom instrument.
Artist On The Rise (Bronze): Create a new custom Band logo.
Masterpiece (Bronze): Create a new custom rocker.
Mooned (Bronze): Perform as the Drummer.
There's Hope! (Bronze): Recover from a poor performance.
Clash Of The Titans (Bronze): Win a Band vs. Band match (8 players).
Ink And Blood (Bronze): Create a custom tattoo.
Glory to the Daring (Bronze): Play a song in the Atlantis venue.
Face To Face (Bronze): Win an online Pro Face-Off match.
Rock Veteran (Bronze): Play 150 songs throughout your entire Career.
Smoking!!! (Bronze): Complete the song Smoke On The Water as a Vocalist.
Deadzone (Bronze): Fail a song with available Star Power in single player.
Rock Legends (Silver): Complete the Career in a Band (2-4 players).
Cowboys From Hell (Silver): Get 100% on a song as a Band (4 players).
The One Man Band (Silver): Complete all four instrument careers on any difficulty.
Killing In The Name (Silver): Win 50 online matches.
Amazing Rockstar (Gold): Complete single player Expert Career on all instruments.
Complete! (Platinum): Earn all of the Bronze, Silver and Gold Trophies.

Additionally, there are thirteen secret trophies:

Secret trophy (Unknown): Unknown.
Secret trophy (Unknown): Unknown.
Secret trophy (Unknown): Unknown.
Inhuman (Bronze): Score 5 stars in a song on Expert with Lars Umlaut in single player.
That was Close! (Bronze): Win a song with the rock meter in red.
Open Minded Strummer (Bronze): Hit all Open Strum notes in the song Laid To Rest as the Bassist.
Rising Star (Bronze): Complete 100% on any song on Expert in single player.
Hail The Reverend (Bronze): Get 5 stars on the song Beast And The Harlot Expert Drums without using Star Power.
Lightning Speed! (Bronze): Complete the song YYZ with 5 stars on Expert Bass.
Cyborg (Silver): Get a 100 note streak in the song Through The Fire and Flames on Hard or Higher as the Drummer.
Free As A Band (Silver): Score 2,000,000 points on the song Free Bird as a Band.
Golden Voice (Silver): Score 95% or more on the song Killer Queen as the Vocalist (Expert).
8th Wonder (Gold): Complete the song Through The Fire and Flames with 4 stars or more as the Guitarist on Expert.