[ ... what is he supposed to do with all these balls?

That's the first question that strikes him as he lies in the center of the colorful pit, clad in his armor and weapons. Just how is he supposed to wade through all of this? He's not even certain what it is he's sitting on, but it's uncomfortable. There are balls digging into places where balls should not be and if he wants to be crass, there are balls digging into balls. There. I said it.

It's most unpleasant to say the least, and Mitsunari tries to stand in spite of all the discomfort, absently fighting for escape and wondering how he was even dropped here. At least, a familiar face greets him, though Saitou looks more thoughtful than concerned about the state of things. ]

I don't suppose you actually know something regarding the purpose of this room. Is it supposed to be training or amusement to whoever it was who saw fit to drag us here. All this being shuffled around dimensions has long since become aggravating when they won't even return us to our proper worlds as they should.