Key Item

A Key Item is a type of item used throughout the Hyperdimension Neptunia series. Key Items can serve multiple purposes, but these types of items are usually only obtained once or a very few items. They can never be taken away from the player's inventory once obtained unless required so by an event in the game.
Key Item may refer to:
*Item/HDN#Key Items
*Item/mk2#Key Items
*Item/Victory#Key Items
*Item/Victory II#Key Items
*Item/Re;Birth1#Key Items
*Item/Re;Birth2#Key Items
*Item/Re;Birth3#Key Items
*Item/4 Goddesses Online#Key Items
*Item/Sisters vs Sisters#Key Items