As a whole, Green Day: Rock Band plays like a big, wet kiss for its fans. Non-fans will still enjoy this one as well, not only because they probably know the hits even if they don't enjoy them, but because the songs are a perfect fit for the Rock Band experience. This isn't a case of just adding Green Day to Rock Band and calling it a day: rather, Harmonix took the time to marry a band's existing catalog to its sublime gaming experience, resulting in an immensely enjoyable experience that has far more appeal than you or I originally thought.