People who preorder Guitar Hero Metallica from GameStop will receive a free extra foot pedal for their drums, as well as splitter to use both pedals at the same time. Online customers will have their foot pedals delivered with their copy of the game, while in-store customers can pick them up on the game's release day.GameStop: Guitar Hero Metallica Double bass drums are used in the game's special Expert Plus mode, which features more complicated and intense drum routines than in any other Guitar Hero game before.

Those who preorder the game from BestBuy will receive a tattoo sleeve. Those who select to place their preorder at either Hollywood Video or GameCrazy will receive a pair of GH: Metallica branded drumsticks.Official Site: Guitar Hero: Metallica Preorder

Expert Plus mode lets hardcore drummers access a double bass drum track, adding a new level of intensity to all gameplay modes. The new mode requires use of dual foot pedals, which will more accurately reproduce the band's sound, since Metallica drummer Lars Ulrich is known for using double bass drums.Metallica: Guitar Hero...Worst Kept Secret, Part II (January 15, 2009) IGN: Guitar Hero: Metallica

Other rumored features include a "drum fill" mode that lets players freely experiment with Metallica drum sounds, as well as DVD-style extras and bonuses, special guitar effects based on guitarist James Hetfield's custom tunings in the song creation mode, and information bubbles that appear during gameplay.Joystiq: Rumor: Guitar Hero Metallica to Feature Expert Plus Drum Mode and More (December 12, 2008)

• GameStop: Guitar Hero Metallica