Optional Bosses

Master the optional bosses Phantom, Kurt Zisa, and The Unknown in Kingdom Hearts HD 1.5 ReMIX. Learn strategies, weaknesses, and rewards to overcome these challenging fights.

Kingdom Hearts HD 1.5 ReMIX features several challenging optional bosses that offer unique rewards and test your combat skills. This guide covers Phantom, Kurt Zisa, and The Unknown, providing strategies to defeat them.

Phantom

The first optional boss is Phantom, located in Neverland. Land at the Ship: Cabin, swap Goofy for Peter Pan, and talk to Tinker Bell to investigate the Clock Tower.

BOSS - Phantom

Preparation: Gear up with MP-increasing accessories and Keyblades, and stock up on Ethers and Elixirs.

Strategy:

• Cast Stopra on the clock to halt the Doom countdown, which Phantom uses on allies.
• Phantom's orb changes color, indicating the attack type to use: Red for Fire, Blue for Blizzard, Yellow for Thunder, and White for Physical attacks. Map these spells to your quick keys.
• Phantom takes three hits before its orb breaks and it attempts to claw you.
• After attacking, Phantom moves to the clock and casts a poisonous energy ball. Position yourself around the corner of Phantom to avoid this attack. Recast Stopra on the clock every other time Phantom casts this spell.
• Use Ethers/Elixirs to maintain high MP for spellcasting.

The Cloaked Shadow

Defeat the Phantom at the Clock Tower.

Kurt Zisa

The next optional boss is Kurt Zisa, found in Agrabah. Land at Aladdin’s House and talk to Carpet to be taken into the desert.

BOSS - Kurt Zisa

Preparation: Set Aeroga as a quick cast.

Phases:

1. Phase 1: Immediately cast Aeroga. Kurt Zisa uses Silencega, canceling spellcasting until his dark orbs are destroyed. He attacks with dashes and swings of his Khopesh weapons. Aeroga helps with damage and mitigation.
2. Phase 2: Once orbs are destroyed, Kurt Zisa uses his head to stretch out like a snake. This attack is weak. Heal the damage and attack Kurt Zisa heavily while magic is no longer sealed. Aim to take down at least half his health.
3. Phase 3: Kurt Zisa puts up a shield and floats, summoning tornadoes and fireballs. Deal damage to the shield with magic (Blizzard is most effective if all flakes hit). Hitting fireballs back at Kurt is also effective. Physical attacks drop clear orbs to refill the Charge Gauge.

When the shield drops, Kurt Zisa reverts to phase two, then phase one. The third time phase one starts, Kurt Zisa twirls around the battlefield; Dodge Roll or Glide past these attacks to avoid massive damage. You should be able to defeat Kurt Zisa by the third time you enter phase two.

The Sandy Blade

Defeat Kurt Zisa in Agrabah.

The Unknown

The final optional boss is simply listed as “?” in the Journal, titled Unknown. You can face this foe in the Castle Chapel in Hollow Bastion by stepping into the dark portal.

BOSS - Unknown

Preparation: Set shortcuts to Graviga, Aeroga, and Curaga.

Strategy:

• Graviga can bring Unknown to his knees, allowing for physical attacks.
• Start the battle by summoning Tinker Bell.
• Unknown summons a barrier making him impervious to frontal attacks. Stay away from the lightning balls he summons.