It's currently just an on-off toggle for the hypno effects in combat. So for people who just find them annoying (or if you're trying to get to a certain point quickly for whatever reason), it's an option. Currently it makes the game a bit too easy, as I don't amp up the normal attacks to compensate. But I'll probably look into doing so in the future. Essentially though, it's a tool to let people choose their own playstyle: battlefuck included, or just enjoying the stand-alone scenes.