Thanks for playing!
Controller UI has had a lot of problems, and I haven't managed to fix them yet. There's definitely some more polish to be done on animations, although I think I'll be prioritizing new animations first before I go back and fix the older ones.
I think it's less of a balance issue but rather a tutorial issue. Since it's a boss rush, I don't have goons to throw to teach the player how to play, so it's really hard to convey the kind of play style that's being asked for. I think insta-kill moves can be fair if they're easy to spot and deal with, and in Louise's case, all you really have to do is run up and around her in about 5 seconds, and then it's free hits during the charging time. It's meant as a distance check to teach the player to stay close and find opportunities to attack, since it's a very obvious window for attacking.
Although, there was also a plan to add a revive like in Sekiro, so with that missing it might be a bit unfair. Apart from that, there's a lot of balancing that needs to be done on flinch timings and damage values in general.