Don't know if this is the kind of glitchy graphics Reiska encountered?
This is in Nestopia btw. I only checked the beginning cavern of the game and what is odd about it, is that I think I could only trigger it in the very first battle of the game. It happens when you switch rows, the glitchy message push the character names off screen before they take action. The character names in my example are AAAA... BBB... and so forth, so not part of the glitchy graphics in case you wondered.
Oh, I see what the problem is. All battle messages are located in the same text bank, so for those two particular messages I wasn't sure if they were commands or not, because their indexes are lower than the Attack command, which I assumed would be the first one . They break the five-character command limit, causing glitches:
I didn't even know you could change rows mid-battle, lol. The commands in Japanese are ぜんしん and こうたい for "Advance" and "Retreat", respectively; and because I wasn't sure how those two message indexes were used, I simply translated those words and hoped it would work in whatever context it appears in.
Turns out the same issue occurs when you move up a row:
Now that I know how that those messages are commands, I have already fixed them for v1.1, to "Front" and "Back":