Ultima Weapon

Ultima Weapon is a form for Sora's keyblade in Kingdom Hearts and Kingdom Hearts II. In both games, it is synthesized by the Moogles, but the appearance and abilities are different for each game. In Kingdom Hearts it is the strongest Keyblade in terms of strength and MP, but in Kingdom Hearts II it is second in strength to Fenrir (tied with Oblivion and Decisive Pumpkin) and second in magic to Fatal Crest (tied with Bond of Flame.) In Kingdom Hearts II Final Mix+ it is third in magic to Winner's Proof.

Recipe

 * 5 Lucid Gems
 * 5 Power Gems
 * 5 Thunder Gems
 * 3 Mystery Goo
 * 3 Gales

Recipe (Final Mix version)

 * 5 Thunder Gems
 * 5 Mystery Goo
 * 3 Mystery Force
 * 3 Gales
 * 3 Dark Matter

Recipe
The Ultima Recipe in Kingdom Hearts II is in the basement of the Mansion in Twilight Town.
 * 13 Orichalcum+ (required Energy Crystals to reduce the quantity to 7)
 * 5 Orichalcum
 * 1 Mythril Crystal
 * 1 Dense Crystal
 * 1 Twilight Crystal
 * 7 Serenity Crystals (Energy Crystals available to reduce the quantity to 4)

Design
The Ultima Weapon Keyblade is named after the sword of the same name in the Final Fantasy series. The Ultima Weapon is typically shown within the Final Fantasy series as a long sword, with a glowing blue/white blade and a golden handle. It is usually the strongest weapon for the protagonist in the games it appears in.

Trivia

 * If you look closely, you will notice that the Kingdom Hearts version appears to have the Dream Sword underneath the lacing.
 * In Kingdom Hearts II, through the use of an Action Replay, a keyblade called the Edge of Ultima can be obtained, which seems to be a palette swap of the Kingdom Hearts version of the Ultima weapon.