Target announced that E for All attendees are invited to compete in the first-ever Guitar Hero event at E for All. During the event, hundreds of competitors will showcase their shredding skills at one of the Guitar Hero II kiosks on the show floor to qualify for the final showdown Saturday on the main stage. Gamers will even get the chance to play Guitar Hero III: Legends of Rock before its release on October 28. By out-rocking the competition and impressing the celebrity judges, the true Guitar Hero will walk away with more than $3,000 in cash and Target gift cards.