It now seems that after successfully adding a full instrumental set up to the band simulation genre, games based around a single band are the way forward for both Neversoft and Harmonix, developers of Guitar Hero Metallica and the forthcoming Beatles game respectively. But while the influence and continuing popularity of The Beatles back catalogue isn't to be sniffed it, it's hard to imagine that the game will have quite the same amount of attitude and raw energy as Neversoft's latest offering. Love them or loathe them, Metallica truly are the masters of metal and marrying them with Guitar Hero truly is a match made in heaven. Or should that be hell in this case?