Guitar Hero World Tour is the latest game in the Guitar Hero franchise. This installment features instruments other than guitar for the first time in the series. Cheats for the game unlock a variety of elements.

Besides a number of special characters, some of whom can be unlocked using cheat codes, Guitar Hero World Tour also offers a mode for players to create their own characters. In this mode, players can start from one of the existing Guitar Hero characters and change numerous elements such as clothes, makeup, age and tattoos. In addition, players can also select from a wide variety of different instruments, which can be customized as well.Wikipedia: http://en.wikipedia.org/wiki/Guitar_Hero_IV Guitar Hero IV]

Besides the ability to play the game to music from numerous famous bands, Guitar Hero World Tour also gives players the ability to create their own music with the Studio mode. Said to funtion similar to Apple's Garage Band software, this mode allows players to record different tracks of music in either real time or slowed down time and then mix them together to create a full song.Wikia.com Guitar Hero World Tour Wiki

Below is a list of currently known cheats for Guitar Hero World Tour.

• Code: Press Blue(2), Red, Green(2), Blue(2), Yellow

• Unlocks all songs in the game

• Code: Press Yellow(2), Blue, Red, Blue, Green, Red(2).

• Disables all HUD elements

• Code: Press Green, Blue, Red, Yellow(2), Red, Green(2).

• Speeds up rate at which gems move on track

• Code: Press Yellow, Green, Red, Blue(4), Red.

• Automated drum kick pedal

• Code: Press Blue, Blue, Red, Green(2), Blue(2), Yellow.

• Unlocks quickplay mode

• Code: Press Blue, Red, Yellow(5), Green.

• Unlocks Aaron Steele character

• Code: Press Green, Red, Blue, Green, Red, Blue, Blue, Green.

• Unlocks Nick character

• Code: Press Blue, Red, Blue(2), Yellow(3), Green.

• Unlocks Johnny Viper character

• Code: Press Blue, Red, Green, Green, Yellow(3), Green.

• Unlocks Rina character

• Code: Press Red(2), Blue, Yellow, Green(3), Yellow.

• Makes instruments invisible

• Code: Press Green, Red, Yellow(3), Blue(2), Green.

• Makes characters invisible

• Code: Press Yellow, Green, Red(2), Green, Blue, Red, Yellow.

• Unlocks AT&T Ballpark venue

• Code: Press Blue, Red(2), Green, Red, Green, Red, Yellow.

• Changes Gem colors

• Code: Press Green, Red, Green, Blue, Red(2), Yellow, Blue.

• Changes flame color

• Code: Press Red(2), Yellow, Red, Blue, Red(2), Blue.

• Changes star color

• Code: Press Red, Green(2), Yellow, Blue, Green, Yellow, Green.

• Unlocks vocal fireball effect

• Code: Press Green(2), Red(2), Yellow, Red, Yellow, Blue.

• Automates sliding during play

• Code: Press Green, Red, Yellow, Blue, Red, Yellow, Blue, Green.

• Increases number of line 6 notes