Ah, gotcha. I must have not noticed that and thought I only saw the first three.
I had lost the Emi fight a couple times. After seeing most of the punishment, I force closed the game (in case this is relevant) to try again another day. I did this again the next time I lost so as to not have to sit through the entire punishment. Later, when I beat it, I saw the locked option and thought that I might have needed to lose once and and *then* finish it to unlock the fourth option, so I saved and reloaded the fight save.
That's when it started to break down. I lost intentionally, then overwrote the fight save for efficiency. But when I attempted the battle again, the green 'fight back' tiles closest to Emi were already there as the red pattern tiles started flashing. I took advantage of them and immediately attacked, which I later realized made everything much worse. Attacks happened at the same time as the pattern's red tiles, and any time the green tiles would appear, I needed to wait another turn in order for it to let me use them. When I inevitably lost, the fight back action text appeared at the top the entire punishment, and Marywell's portrait sometimes showed up underneath some of the layers of Emi's art and text. This happened on both completion mode and regular mode.
I eventually found the way to correct it after a few attempts (though I did beat it bugged, I'd like to brag about that): ignore the green tiles and avoid the first attack normally. That made them disappear and reset the fight back to normal. I have no idea if any of this was just happenstance or my fault, but I hope this information is useful to you haha.