So how did you think is my progress? As you saw, all of the squares I cleared so far are A-Ranked (you can tell it by a gold dot at the top-right corner of each square). Also, I got all rewards, A-Rank rewards, and treasures in squares I cleared so far. I'm getting there, but again, it's getting a lot harder now, and there may be more "Don't get hit!" challenges coming, so I have to be prepared.