Board Thread:General Discussion/@comment-32182236-20190721003717/@comment-32182236-20191010172224

I'd imagine that they were reading it.

If they were describing it and the meanings of the flags, that would mean they knew what they were.

Meaning that either the humans had their own Ball Game, or the Ball Game was around when Chara was alive, traits and all.

Which would imply that Scenario A is true.