The Pink Agaricus is by far the largest and most eccentric of the mushroom Heartless! Getting it to appear is half the struggle, and satisfying its requirements can be tricky; but if done successfully, you can obtain Serenity Power for item synthesis and the coveted Prime Cap accessory.

Finding the Pink Agaricus

The Pink Agaricus can be found at Deep Jungle: Treehouse and Atlantica: Undersea Cave, but in order to satisfy requirements, we'll be focused on encountering it in Deep Jungle. You will know when the Pink Agaricus can be encountered when you enter the area and no Heartless appear.

Your first task is to cast Stop magic on three White Mushrooms hidden around the area. Summoning Bambi while you do this will help you keep your MP replenished for the next step! Here are all possible locations:

Location Screenshot
On the ground-level path leading up to the back of the tree house.
On the netting below the tree house.
Under the broken set of stairs on the west side of the tree house.
On the upper balcony near the back of the tree house.
On the upper ledge on the front of the tree house.
On the banisters of the tree house; use the ladder in the back to reach it.
In the boat suspended in front of the tree house.
On the crow's nest above the suspended boat; use the east ladder to glide to it.
On the roof of the tree house; use the east ladder to glide to it.
On a small ledge on the front of the tree house; use the east ladder to reach it.
On a small ledge on the back of the tree house; use the east ladder to reach it.

Fighting the Pink Agaricus

When all three White Mushrooms have been satisfied, the Pink Agaricus will appear in the center of the treehouse. If you previously fought Sabor a second time at the Treehouse during your first visit to Deep Jungle, the hole in the treehouse floor will cause the Pink Agaricus to drop to the netting below.

When standing in front of the Pink Agaricus, be sure to target its head (it has two target points). Cast Aero magic on Sora, then cast Stop on the Pink Agaricus. Activate Ragnarok (with a maximum laser burst) as many times as possible while the Pink Agaricus is stopped, and deal aerial combos in between casts of Ragnarok.

When the Pink Agaricus recovers, each hit dealt by Sora will register Tech Points. The number of hits dealt to the Pink Agaricus while it was stopped will determine the odds and number of items dropped.

Condition Reward(s)
10, 20, 30 Hits 10 Munny
Potion (100%)
40, 50, 60 Hits 50 Munny
Hi-Potion (100%)
Serenity Power (10%)
70, 80, 90 Hits 100 Munny
Ether (100%)
Serenity Power (20%)
100 Hits 180 Munny
Mystery Goo (100%)
Serenity Power (100%)
Prime Cap (100%)

Obtaining the Prime Cap

Here are some tips for those looking to deal the maximum 100 hits to the Pink Agaricus for the Prime Cap accessory:

If you're playing the Playstation 3 verison of Kingdom Hearts 1.5 HD ReMIX, Donald and Goofy's attacks will detract from the final hit count. In order to avoid this, summon Bambi near the ladder on the east side of the treehouse. After Bambi is dismissed, Donald and Goofy should get trapped there while you hit the Pink Agaricus. This issue was resolved in the release of Kingdom Hearts HD 1.5 + 2.5 ReMIX for the Playstation 4.