Jigoku-girl is accompanied by a mirror demon called Ungaikyou. The mirror is considered to be the most ancient of all mourning gods, but it can be used to depict what the enemy is holding, transforming it into a demon and destroying it. In other words, anything goes.

雲外鏡という鏡の妖怪を引き連れた地獄ちゃん。鏡は一番付喪神で古いとされているんだよ。この鏡で敵の持っているものをうつして付喪神に妖怪化させ、やっつけてしまうんだ。つまり何でもアリってことなんだ！