There are 9 types of items in Hyperdimension Neptunia mk2. * Usable Items: Items that can be used in battle by any character or out of battle. Usable items can be used for recovery, status ailment treatment, or even stat increases. These can be created using Item Synthesis, dropped by enemies, obtained as rewards from quests, found in dungeons, or bought from the store. * Key Items: Items that are either required for story progression or have a special use such as a Product Proposal. * Materials/Synthesis Items: Items required for Item Synthesis. They can be found in dungeons from gathering spots or even dropped from certain enemies. * Weapons: Items that can be equipped to a character to primarily increase their offensive base stats. These can be made using Item Developm