Complete the indicated task to unlock the corresponding guitar.

Effect	How to unlock
"Bat" Guitar	5-Star Every Song On Easy
"Beach Life" Bass	Complete Co-Op Career Mode On Hard
"Distant Visitor" Guitar	Complete Career Mode On Expert
"El Jefe" Guitar	5-Star Every Song On Expert
"Jolly Roger" Guitar	5-Star Every Song On Medium
"Nemisis 13" Guitar	Complete Co-Op Career Mode On Any Difficulty
"Neversoft Skateboard" Guitar	5-star Co-Op Career Mode On Expert
"Rojimbo" Guitar	Complete Career Mode On Hard
"Tiki" Guitar	5-Star Every Song On Hard
Moon Shot	Complete the under the Easy difficulty.
Saint George	Complete the game under the Medium difficulty.