theres at least 400 zombies there to kill in these 5 amazing maps ill say first two or three maps may be a bit laggy but if u can pass the first two levels u will be fine and u can start over from the level not like 5 to 1 u would just restart 5 and this may take a LONG time one of the LONGEST maps in this game it took me 45 minutes with OUT DYING AT ALL so if i would of it could of tooken over a hour so dont die unless u really enjoy this map!!! and rate dont hate took me along time to finish this serie