Board Thread:Plants vs. Zombies 2: It's About Time/@comment-24922984-20150522195938/@comment-24735666-20150525162933

So pilot is introduced very early. Maybe that's because he's just basic zombie being dropped, while bug zombie is fast and skips plants and can carry conehead or buckethead. Still I expected bug zombie on day 2 and pilot on day 6. It might be the opposite then.