Board Thread:Plants vs. Zombies Wiki Discussion/@comment-4009269-20140213201430/@comment-24275721-20140725015909

Balam Ajaw wrote: In what difficulty playing the Gargantuars and Zomboss events? I play it in easy mode (because the Gargantuar level in medium and hard modes are impossible without plants level 2) and I only receive few puzzle pieces, so I couldn't level up any plant :/ The sad news is sometimes you have to do the other difficulty battles as some plants pieces can only be obtained via those.

So far, the hardest battle is Zombot Sphinx-inator Level 3. I hate that thing, ugh.