The problem is that on my way out, I ended up with multiple Momokos. And I was kind of trying to see if you could actually hardlock yourself with some effort. It is very much possible if during chases, you attack a lot more than you should. Also, the fact that Momokos respawn when you re-enter (if you don't kill them) doesn't help.
As you can see here, the Momoko is facing the other way and she never turns around. This makes this Momoko unkillable because you can't kill her from behind. This means that this Momoko prevents you from progressing.
You can only kill Momoko if she is facing you or you might need a certain amount of stamina/hp, she doesn't turn around, and she doesn't seem to otherwise respawn.
(And as for another bug... that mirror image....)
