Board Thread:Fan-made Monsters/@comment-28718853-20160803202353/@comment-28718853-20160805023238

To hopefully answer your question RK. The helmet would sap the intelligence of any mamono except the ones with high mental power like Mindflayers and Hakutakus. They would become very friendly, but simple. When the helmets are removed, then the host regains all of her intelligence as well as experiencing a sudden burst of rage and the urge to attack any females that get in the way of her man.