Nintendo’s first Wii game for Japan in 2010, Zangeki no Reginleiv, is also their first CERO D game, ever. And Zangeki no Reginleiv got that rating since it’s heavy on gore. Limbs fly when Freyja and Freyr, the two playable Norse deities, slash giants.
Sandlot, the company that made all of the Earth Defense Force games, developed Zangeki no Reginleiv. Their game makes use of MotionPlus for more accurate limb chopping. Not into motion control? Zangeki no Reginleiv supports the Classic Controller and Nintendo Wi-Fi for a four player co-op mode too.