Cheat Mode

Enter the "Options" menu. Select "Cheats", then "Enter New Cheat". Then, enter one of the following codes to unlock the corresponding cheat option. Note: Each note or chord must be strummed during code entry. Press Green at the "Cheats" menu to turn off a particular cheat.
Unlock Everything

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". Also, this code cannot be disabled once it is activated. Go into the shop in Career mode to access all items. Songs are not unlocked with this code.
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.
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Bret Michaels as the singer

Press [Green + Red] three times, [Green + Blue] three times, [Green + Blue] two times, Green + Blue, Red + Blue, Red three times, Red + Blue, Red three times, Red + Blue, Red three times. Note: Enabling this code will glitch online game play.
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. Note: This code cannot be disabled once it is activated, and all songs will remain unlocked permanently.
Hyperspeed mode

Press Orange, Blue, Orange, Yellow, Orange, Blue, Orange, Yellow. This code makes the charts faster. There are five Hyperspeed levels. Press Green at the Hyperspeed option on 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.
Air Guitar

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

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". Also, this code cannot be disabled once it is activated. Go into the shop in Career mode to access all items. Songs are not unlocked with this code.