Out of all the band-centric spinoffs that flooded the market during the tail end of the western rock game bubble, I think this is the only one that justified its existence just by how much of a Beatles tribute it really was. So much detail in the backgrounds, the thorough history of the band is shown here (unlike, say, Guitar Hero Van Halen), and, especially once you get to the later years, it becomes an experience like no other Rock Band game. I'm not even that much of a Beatles fan, but I played the entire game in one day for that one achievement, and it was worth it.