Head to the in-game cheats menu and insert the following code on your guitar to unlock larger scrolling gems – Green, Red, Green, Yellow, Green, Blue, Green, Orange, Green, Blue, Green, Yellow, Green, Red, Green, Green & Red, Red & Yellow, Green & Red, Yellow & Blue, Green & Red, Blue & Orange, Green & Red, Yellow & Blue, Green & Red, Red & Yellow, Green & Red, Green & Yellow.