That's the castle dungeon part and some gorey game overs, there are a few white flashes here and there that should not cause epilepsy, they aren't numerous and fast.
I joked about mental pressure, meaning that it arises from flashes. I can most often play the game at night before going to bed... I play with low screen brightness in the dark. These flashes also appear often during bed scenes. 🔥👄🔥
