as I previously mentioned, getting everyone locked up in straight jackets is a surprisingly effective strategy since at the cost of being reduced to one physical attack, they're completely immune to hypnotic effects, making the boss's "hurt yourself" move useless, as well as any other hypnotic commands from other enemies in the level, although you will probably want to be max level for that trick. might help to have madoka's fixed damage skill, since it apparently is always available, but i haven't tried it myself.