The Pink Agaricus is a type of Emblem Heartless that appears in Kingdom Hearts Final Mix. Unlike most Heartless, this creature isn't hostile, though the reasons as to why not are a total mystery. It shares the same appearance as the other members of the Mushroom Heartless family: a black head with no features apart from two small yellow eyes, a mushroom-like cap and a robe adorned with the Heartless emblem. Its robe is colored aquamarine and its cap is pink.
The Pink Agaricus only appears in Deep Jungle and Atlantica. Before it appears, Sora will encounter three White Mushrooms that all perform the Stop charade. Once the White Mushrooms have each been Stopped, the Pink Agaricus will appear. The Pink Agaricus challenges Sora to strike it as many times as possible while it is Stopped. Sora can obtain the Heartless's unique synthesis material, Serenity Power, with as low as forty hits, but can only obtain its Prime Cap by inflicting the maximum of one hundred hits. For each hit, the Pink Agaricus will reward Sora with a progressively larger Tech Point bonus matching its ordinal, and for every ten, it will drop larger amounts of munny. However, any attacks landed by Donald and Goofy will detract from the final score.