Band Hero has long been lurking at the bottom of the Activision Blizzard release list in perplexing proximity to the more self-explanatory DJ Hero and Guitar Hero brands, but until last week I had absolutely no idea what it was. It doesn't take much power of deduction to conclude that it's another peripheral-based music game, but why? Surely that could only serve to dilute the Guitar Hero brand? I'm not sure how many more plastic instruments my flat can hold. I can count seven guitars without even exaggerating for comic effect.