Talk:Plants vs. Zombies 2 (Chinese version)/@comment-29310466-20150825045917

In this game, is it each plant need the certain amount of puzzle pieces respectively and use your coins to upgrade each one once you collected all of the puzzle needed?? If so, what the heck, so difficult to bring a plant to level 2 or even higher level and there are so many plants waiting for you to upgrade one by one, the game's system is kinda crazy and definitely crazier than Crazy Dave!!