Haha, apul has a great mastery over the enemy's AI and how to manipulate it. He's made a billion no-damage/low-level/you name it videos.

Of course, I'm no apul. And I'm definitely not on Critical Mode (both the player and enemy take more damage) with maxed out attack and magic at level 99. I don't really think it's safe to assume that the bosses are easy if you haven't fought them before, and especially if you've seen a yarikomi video of them.