CoD zombies is one of the best games I've ever played. Great graphics and amazing quality. The best things about the game were exploring the maps and blowing the zombies apart. There is also a hidden plot line in the game, can't tell ya though. HINT: there are clues in Verruct Zombie Asylum and the big giveaway is in Shi No Numa on a radio, listen very carefully to what the person says; also listening to the radio might glitch the game, happens to me a lot. Sure it costs 10 dollars, and the other maps 5 dollars each, but maps on the xbox 360 are like 20 dollars each. Overall this is a great game, and anyone who likes zombies or call of duty should buy it. Personally I, myself, am addicted to the game. So buy it, play it, and tell all your friends, siblings, neighbors, etc. to buy it. Be forewarned this game is highly addicting.