Do waves get more difficult the more time you beat them?

It seems that waves will get more difficult the more you beat them. Am I seeing things?

Comments

  • platoplato Registered Users 24 Posts
    Yes, they do get more difficult.

    Takes more hits to kill a given zombie and their hitting power increase.
  • Soul ReeperSoul Reeper Registered Users 5 Posts
    There are some levels that I can barely defeat anymore.
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