Board Thread:Plants vs. Zombies 2: It's About Time/@comment-4775209-20130815185328/@comment-5565348-20131028230353

Well honestly there's no directly working method. Sometimes I have found 2 keys in a single level by sheer dumb luck, sometimes I am devoid of key findings for over 10 levels. It's a randomized value, it can take forever to trigger it due to its low probability.