Activisioin is getting ready to release Guitar Hero 3 this fall, and their stocks are rising simply from the anticipation. Guitar Hero 2, released earlier this year, has become a breakout hit for the company - and people actually have Guitar Hero competitions in bars around the country. The third installment in the franchise will have songs from Guns ‘N’ Roses, Metallica, and The Rolling Stones. It will also feature a new battle mode.