Not worth it. No matter how much you upgrade your zombie units, they will always be one shot. Game has a lot of potential wasted on bad tuning and annoying ads.
It's addictive time killer
Good game.... Wowww
Awesome Minutes turn to hours on this nutty lil thing!
Great game Ben..
Fun & addictive. Loved playing for the zombies...
1.04 - New challenge mode added