Board Thread:Plants vs. Zombies 2: It's About Time/@comment-25200219-20141203172702/@comment-24508466-20141215200629

I think this pattern is like that: 4 worlds with 25 levels, upgrades and similar cyclops Zombots. After that 4 worlds with random amount of levels, no upgrades and animal-like Zombots. After that 4 worlds with another type. And so on.