I contemplated a level/round aproach, where you need to get to X length to complete the round.
As it stands, the bigger you are, the more "lives" you have from being hit by zombies (as you lose a body piece from being hit by them), but yes, the problem is you're more likely to be hit to :).
So perhaps I need to balance/explore a bit more on the pie eating side of things :)
thanks for the feedback! much appreciated