Simply refresh the browser whenever you encounter bad luck. I've tried to complete the game without cheating for 100+ times, before I convinced myself that Zombie is not real, so cheating this frustrating game is not a sin.
@Doomshout: they just don't know how good this game can be. Also, the better the product, the more people want to criticize it :D
@ anyone who complain: you don't know what you've missed. If you know but don't care, or simply think this game sucks, try to "beat" the game
@Ruri: then tell me how the hell they make money with a free online game? Ads only? Get real.