Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
*The items can be acquired in the base game, too. *Some of the attachment parts can be shared with other characters. *After installment, the items are added to 'Extra Items' within the item menu in the game.