How do you get all regular oricalcham in Kingdom of Hearts 2?

In Kingdom Hearts 2, to obtain all Regular Orichalcum, you need to complete specific tasks. One Orichalcum is found in the Twilight Town area after defeating the Heartless, while others can be acquired by opening treasure chests throughout various worlds. Additionally, you can obtain Orichalcum by synthesizing items at Moogle shops, particularly when you reach a certain synthesis level. Be sure to explore thoroughly and complete side quests for the best chances of finding them.