Board Thread:Plants vs. Zombies 2: It's About Time/@comment-5052376-20140429165159/@comment-24381251-20140506234114

This doesn't really count as a glitch, but once you have used all the plant cards in the endless zone, there are only powerups and sun left. Those powerups aren't limited to the endless zone. Combined with the changing the zombies in the endless zone glitch, it's really easy to stock up on powerups without spending coins.