Guitar Hero II Hyper speed mode: Press Blue, Orange, Yellow, Orange, Blue, Orange, Yellow, Yellow at the main menu. The frets will be moving faster. You can still save your game when this code is enabled. Repeat to disable. Performance mode: Press Blue, Blue, Yellow, Blue, Blue, Orange, Blue, Blue at the main menu. Everything disappears except for the performance (no frets!). Air guitar mode: Press Yellow, Blue, Yellow, Orange, Yellow, Blue at the main menu. Eyeball head crowd: Press Yellow, Orange, Blue, Blue, Blue, Orange, Yellow at the main menu. Flaming head: Press Orange, Yellow, Yellow, Orange, Yellow, Yellow, Orange, Yellow, Yellow, Blue, Yellow, Yellow, Blue, Yellow, Yellow at the main menu. Monkey head crowd: Press Orange, Yellow, Blue, Blue, Yellow, Orange, Blue, Blue at the main menu. Unlock All Guitars Press Orange, Orange, Yellow, Green, Red, Blue. 5 times through at the main menu. Unlockable Guitars "The Log" Guitar 5 Star every song on Expert Mode Axe Guitar Beat Expert Mode Casket Guitar Beat Medium Mode Eyeball Guitar 5 Star every song on Hard Mode Fish Guitar Beat Easy Mode Snaketapus Guitar Beat Hard Mode USA Guitar 5 Star every song on Easy Mode Viking Guitar 5 Star every song on Medium Mode Unlockable Co-op Basses: Gibson SG Bass Beat 10 Co-Op songs Gibson Grabber Beat 20 Co-Op songs Gibson Thunderbird Beat 30 Co-Op songs Hofner Bass Beat all Co-Op songs Lava Pearl Musicman Stingray Get 5 stars on 10 Co-Op songs Cream SG Get 5 stars on 20 Co-Op songs Maple Gibson Grabber Bass Get 4 stars on all Co-Op songs Sunburst Gibson Thunderbird Bass Get 5 stars on all Co-Op Songs Glitch out on Buckethead: Go to practice mode and play any part of the song pull the guitar cord out right when the board is going to come up .Then go to quick play and play "Jordan".You'll see that the song isn't there until the part of the song you played in practice is there.Then hit all the notes and wait again until the song is over you should get 100% if you hit all the notes.