Kingdom Hearts Re:Chain of Memories: Parasite Cage Boss Fight
Kingdom Hearts Re:Chain of Memories: Parasite Cage Boss Fight

Parasite Cage is another returning Emblem Heartless in Kingdom Hearts Re:Chain of Memories. Fought within the belly of Monstro, this guide will give you the tips needed to free Pinnochio from this pesky Boss.

Quick Tips for those trying to flush the Parasite Cage out of Monstro:

  • Avoid Acid: Parasite Cage’s arena is full of harmful acid.
  • Ranged Attacks: Casting Fire in mid-air will save you a lot of trouble.

Preparing for Parasite Cage

Monstro’s Key to Guidance | Kingdom Hearts Re:Chain of Memories
Monstro’s Key to Guidance

Parasite Cage is somewhat unique in that despite being Monstro’s only true Boss encounter, this fight happens in the Key to Guidance room, as opposed to the Key to Truth room.

The unorthodox final challenge of this world (1) | Kingdom Hearts Re:Chain of Memories
The unorthodox final challenge of this world (2) | Kingdom Hearts Re:Chain of Memories
The unorthodox final challenge of this world

Instead, this world’s Key to Truth encounter is Monstro’s Belly Brawl, a Time Attack style of fight where the player must wipe out enough Heartless to fill out the gauge within the window of time given.

Fire maintains its relevance in this fight | Kingdom Hearts Re:Chain of Memories
Fire maintains its relevance in this fight

With that in mind, make sure to build your deck before you enter the Key to Guidance room, so as to avoid being blindsided by this Boss. Generally, a mix of Fire, Attack, and Cure cards will do well for this fight, since much of the arena is damaging to Sora. 

Pinnochio is trapped in the Parasite Cage | Kingdom Hearts Re:Chain of Memories
Pinnochio is trapped in the Parasite Cage

Once your deck is in order, you’ll have a brief cutscene where the group finds Pinnochio, only for him to get trapped inside the Parasite Cage. Time for a jailbreak!

Defeating Parasite Cage 

Parasite Cage | Kingdom Hearts Re:Chain of Memories

Enemy Attacks:

  • Swipe
  • Slam
  • Acid Ball

Parasite Cage has one of the more deadly boss arenas in the game, with the bulk of it being flooded with Monstro’s stomach acid. On the flip side, the battle is somewhat balanced out by the fact that Parasite Cage is a fairly simple enemy without many especially powerful moves, so victory will come more from managing your health and avoiding the acid than the Heartless itself.

This Heartless’ basic attacks aren’t too bad (1) | Kingdom Hearts Re:Chain of Memories
This Heartless’ basic attacks aren’t too bad (2) | Kingdom Hearts Re:Chain of Memories
This Heartless’ basic attacks aren’t too bad

Parasite Cage’s two main attacks are when it Swipes at you with its noodly appendages or slams its gourd-shaped body at you, neither of which are much of a threat as long as you have some distance.

This projectile attack will probably hit you unless you quickly break it | Kingdom Hearts Re:Chain of Memories
This projectile attack will probably hit you unless you quickly break it

Occasionally, it may hurl a ball of what appears to be acid at you, which can be a little challenging, but not too much trouble.

Getting off attacks in mid-air is key to winning this fight | Kingdom Hearts Re:Chain of Memories
Getting off attacks in mid-air is key to winning this fight

The goal of this fight is to navigate the rotating platforms, attacking the Parasite Cage when you’re near it and avoiding falling into the acid.

When in doubt, kill it with Fire | Kingdom Hearts Re:Chain of Memories
When in doubt, kill it with Fire

While attack cards are effective, another strategy is to unleash Fire, Fira or Firaga while airborne. This will allow you to deal quite a bit of damage quickly while mitigating time spent damaging yourself in the acid pool.

The Gimmick Card will make your life easier, especially if you use Attack cards (1) | Kingdom Hearts Re:Chain of Memories
The Gimmick Card will make your life easier, especially if you use Attack cards (2) | Kingdom Hearts Re:Chain of Memories
The Gimmick Card will make your life easier, especially if you use Attack cards

If you find yourself struggling with the acid, this fight’s Gimmick Card may be of some use, as it causes the acid to drain for a time, giving you a much more favorable environment to defeat the Parasite Cage.

Not bad, but not great | Kingdom Hearts Re:Chain of Memories
Not bad, but not great

Defeating the Parasite Cage will reward you with the corresponding Boss card, which allows you to nullify a single enemy card. While this effect is useful, it is outclassed by the Jafar-Genie Boss card, as with many of the other non-late game Boss cards.