There are several types of accessories in Final Fantasy XIII. They grant stat boosts and passive abilities. Equipping equipment pieces that belong to the same synthesis group can grant additional synthesized passive abilities. Having held all weapons and accessories the player earns the Treasure Hunter achievement/trophy. The player does not need to hold all the weapons and accessories simultaneously, and only one version of each character's third-tier weapon is required. Once the requirements are met, the player must talk to Bhakti in Oerba to obtain the achievement/trophy.