Deja vu is really odd. You feel like you have seen or done something before, but then you slowly realise that you actually haven't. Rock Band 2 instills this same feeling. At first glance, it looks more like a rather expensive add-on instead of a full blown sequel. Aesthetically, this may be the case, but developer Harmonix ironed out the kinks from the first installment and delivers what is perhaps the most competent music-based title to date.