Board Thread:Plants vs. Zombies Wiki discussion/@comment-26239911-20160514132132/@comment-7091122-20160514213538

Starfruity wrote: Why does everyone think Zombot Sharktronic Sub is so hard? He's never been a threat to me, ever. The Modern Day version is tougher, but still not a very big deal.

Agreed. While his BWB incarnation poses a slight threat, good plays can make the battle easier.

However, his MD version is more a battle of tedium; you're given weak plants (to put this into perspective, the best non-instant plant you get is Rotobaga, and while it is a good plant, it's one of two non-instants you'll get), and for whatever reason, Dr. Zomboss seems a lot more eager to use his vacuum attack to destroy 2 lanes of plants... When you lack a way to prevent it, as far as I know. And the regular zombies are particularly pushovers due to Shrinking Violet's inclusion. So basically at least 25-90% of the battle is having a paltry 4-5 plants on the field, only one hitting Zomboss, as the regular zombies pretty much kill themselves due to the Shrinking Violet making them incredibly fragile, and the remaining plants taking care of them, on top of Stunion and Chard Guard keeping them from ever easily reaching your house/hut.

I can do the Sharktronic Sub without losing a single lawnmower in the MD version. But the real difficulty comes in doing it quickly.