Board Thread:Plants vs. Zombies 2: It's About Time/@comment-25468432-20141219232629/@comment-4077536-20150110114108

Master3530 wrote: How is it possible? Popcap made 15 easy levels and 1 IMPOSSIBLE level! Dang it, dang it, dang it! If you can do it, show me your strategy. I'm sending all of them at down where I have the most fire power.

You have to put Chard Guards under pretty much every slider, so that both Gargantuars in the last wave end up in the bottommost column. That's the way to beat it, after you do that it's easy.