Like normally I try to avoid complaining about content being too hard, but jesus fing christ I feel like the variant dungeon bosses for Mount Rokon are actively designed to suck the fun out of the game.
split second tells for -every- attack, sometimes without ANY warning whatsoever (at least one of the ninja mini bosses requires you to actively be running around or you WILL get hit by her clones after the first example pass of them), the samurai armor boss's entire sword mechanic is just the most insanely unfun shit ever.
Why make it a tiny freaking purple symbol over his head? If it was the criterion dungeon I'd get it but ffs this is meant to be the semi-casual version of the variant dungeons just for funsies. Put markers on the ground for f's sake.
And _ALL_ of the bosses are giant health bricks on top of all of this. First time the game has ever driven my entire party to rage quit.