This game is making me fail my degree. I just can't stop playing it. Great humor and it's so much fun.
The only fault is the difficulty level. It seems a little too easy at times. When you build an impenetrable defense, hoping for it to be tested against the zombie hoards, the next and last wave is small and weak leaving your work in vain.
If you love the Tower Defense type games you will enjoy this and will spend many hours playing it. If you are looking for a deep, single player experience, look somewhere else.
*Sits in garden with a packet of seeds, waiting for the zompocalypse to happen*