How do you synthesize the Ultimate Weapon in Kingdom Hearts

Here are all the items that you will need. Kingdom Hearts:

• Lucid Gem x5
• Power Gem x5
• Thunder Gem x5
• Mystery Goo x3
• Gale x3

 Kingdom Hearts II:

• Orichalcum+ x13
• Orichalcum x1
• Mythril Crystal x1
• Dense Crystal x1
• Twilight Crystal x1
• Serenity Crystal x7