KINGDOM HEARTS III Ultima Weapon guide: How to get every Orichalcum+

The Ultima Weapon is Sora’s ultimate Keyblade in KINGDOM HEARTS III, but crafting it means completing one of the game’s biggest endgame scavenger hunts. The recipe requires all seven pieces of Orichalcum+ in the entire game, and several of them are locked behind minigames, Lucky Emblems, Gummi Ship combat and other completionist challenges.

KINGDOM HEARTS III + RE MIND

Build Sora’s ultimate Keyblade

Explore the Disney and Pixar worlds of KINGDOM HEARTS III, complete its major side activities and hunt down every Orichalcum+ needed to synthesize the Ultima Weapon.

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Unlike ordinary synthesis materials, Orichalcum+ cannot simply be farmed from enemies. There are exactly seven obtainable pieces, which is also exactly how many the Ultima Weapon recipe requires. Miss one activity and you cannot craft it.

How to unlock the Ultima Weapon recipe

You cannot synthesize Ultima Weapon immediately after reaching a Moogle Shop. The recipe itself is part of the Workshop’s Collector’s Goals.

To unlock it, register 58 different synthesis materials. You do not need 58 materials in your inventory simultaneously. The Workshop simply needs to have recorded 58 unique material types over the course of the game.

The three regular Crystal types are replaceable and farmable. Orichalcum+ is the real progression gate.

All 7 Orichalcum+ locations in KINGDOM HEARTS III

Every Orichalcum+ comes from a different activity. There are no extras, so Ultima Weapon effectively doubles as a checklist for several of KINGDOM HEARTS III’s major side systems.

Orichalcum+ #1: The Final World

One of the easiest pieces is found in a treasure chest in The Final World.

You reach this area naturally near the end of the main story. Check the area around the teleport crystal rather than rushing straight through the story sequence. The Orichalcum+ is sitting inside the area’s treasure chest.

If you have already progressed beyond this section, you can return later rather than permanently losing the material.

Orichalcum+ #2: Exile Island in The Caribbean

The second straightforward piece is hidden in The Caribbean.

Take the Leviathan out onto the sea and travel to Exile Island, located west of the central part of the Caribbean sea chart. Dock nearby, head inland and search the center of the small island.

The treasure chest contains another Orichalcum+.

Orichalcum+ #3: Photograph 80 Lucky Emblems

KINGDOM HEARTS III contains 90 Lucky Emblems, the Mickey-shaped symbols hidden across its worlds.

You do not need all 90 for Ultima Weapon. Photograph 80 Lucky Emblems with the Gummiphone and the Orichalcum+ is awarded automatically as a collection reward.

Do not leave all 80 until the end

The easiest approach is to photograph obvious Lucky Emblems during the main story. Then, once you decide to craft Ultima Weapon, you only need to clean up the ones you missed rather than revisiting every world from scratch.

Lucky Emblems are also worth collecting beyond this single material because they contribute to several broader completion rewards.

Orichalcum+ #4: Beat all Flantastic Seven high scores

The Flantastic Seven are seven special Flan Heartless that appear across previously completed worlds.

Each one starts a different minigame. Simply completing each challenge is not enough for the Orichalcum+. You need to hit the high-score reward threshold for every Flan.

You will know you achieved the proper result when the Flan gives you its top-tier reward rather than the basic participation reward.

The seven Flantastic Seven worlds

• Olympus
• Toy Box
• Kingdom of Corona
• Monstropolis
• Arendelle
• The Caribbean
• San Fransokyo

Once all seven challenges have been cleared at the required level, you receive the Orichalcum+.

Orichalcum+ #5: Collect all 10 Frozen Slider treasures

Return to Arendelle after completing its main story and use the Frozen Slider minigame accessed from the Mountain Ridge area.

The course contains 10 special treasure prizes. Because the route branches in several directions, you cannot realistically pick all of them up during a single run.

Fortunately, progress carries across runs. You only need to collect each unique treasure once, finish the corresponding runs successfully and eventually complete the set of 10.

Orichalcum+ #6: Defeat Omega Machina

The Gummi Ship provides one of the harder pieces.

Travel to The Eclipse, the final major Gummi Ship region. Around the enormous central structure are five high-level enemy encounters. You need to clear all five before the real target becomes available.

One of these encounters is easy to miss because it is located underneath the central structure rather than around its obvious sides.

Once all five have been destroyed, Omega Machina appears at the top of the structure. Defeat it and the Orichalcum+ is awarded after the battle.

Upgrade your Gummi Ship first

Omega Machina is substantially more demanding than routine Gummi Ship encounters. Increase your ship’s firepower and durability rather than attempting the fight with an early-game design simply because it survived the main routes.

Repair options can also make the encounter considerably more forgiving.

Orichalcum+ #7: Win it from a Twilight Town Prize Postcard

The final Orichalcum+ is the only one involving random chance.

Shopping at Moogle Shops can occasionally award Prize Postcards. Take them to the mailbox beside the Moogle Shop in Twilight Town and mail them for a random prize.

One possible reward is Orichalcum+.

Save before mailing your postcards

Because the mailbox reward is random, save your game before turning in a postcard if this is the last Orichalcum+ you need. If the reward is something else, reload the save and try again.

The Orichalcum+ reward itself is one-time only, so you cannot use the postcard system to farm additional copies.

How to get Wellspring, Lucid and Pulsing Crystals

Once all seven Orichalcum+ pieces are collected, the rest of the recipe is much easier.

Wellspring Crystal

Wellspring Crystals can be dropped by high-level enemies. If you are already in the postgame, Battlegate 12 in San Fransokyo is a convenient place to farm them.

Lucid Crystal

Lucid Crystals can be obtained from late-game enemies and can also be synthesized once the appropriate Workshop recipe is unlocked.

Pulsing Crystal

Pulsing Crystals are likewise available from late-game synthesis and enemy drops. By the time you have finished the seven Orichalcum+ objectives, there is a good chance you will already have most of the supporting recipe materials.

The fastest way to get Ultima Weapon

There is no need to tackle the seven requirements in the order listed above. A more efficient approach is to make progress during the story and leave the dedicated challenges for the end.

If you are working through the franchise for the first time, our KINGDOM HEARTS games in order guide places KINGDOM HEARTS III and Re Mind in the correct story sequence. If you are deciding which modern bundle contains the game, see our Collection [I–III] vs. INTEGRUM MASTERPIECE comparison.

KINGDOM HEARTS III Ultima Weapon FAQ

Seven materials between Sora and Ultima Weapon

Ultima Weapon is less about grinding one enemy and more about proving that you have explored almost every major side system in KINGDOM HEARTS III.

Lucky Emblems test exploration. Frozen Slider and the Flantastic Seven test minigame completion. Omega Machina tests your Gummi Ship. The Caribbean and Final World reward exploration, while the Prize Postcard introduces one final bit of luck.

Collect all seven, return to a Moogle Workshop with the remaining Crystals and synthesize the Keyblade. If you are heading into Re Mind or the game’s hardest optional encounters afterward, there are much worse ways to prepare.