(アルテマウェポン Arutema Wepon)
"The most powerful Keyblade of all, possesses unimaginable abilities."
Ultima Weapon appears to be a sword-like Keyblade, like the Kingdom Hearts version of the weapon. It's covered with a filigree as all Ultima Weapons do. The bottom of the handle appears to be a 4-star with wings as the guard that forms two crown shapes. The teeth and the token of the Keyblade is the same as the Kingdom Hearts II version.
|Reverse Crown - Demon's Valor - Dewprism - Ultima Weapon - Angel's Wisdom - Fresh Breeze - Summer's End|
|Soul Eater - Omega Weapon|