This article relates to the official games. See Pikipedia's "friendship" article for more official information.

Friendship is a gameplay mechanic wherein every Pikmin has its own friendship level, which is shown in the form of hearts. Hearts are initially red, but gradually become golden as a Pikmin's friendship level is increased beyond four hearts. The lowest possible friendship is four empty hearts, and the maximum is four filled golden hearts. A Pikmin's friendship level can be increased by feeding it nectar or special nectar, plucking petals from it after feeding it nectar, sending it on an expedition, or sending it on a mushroom challenge. When its friendship level is increased, a heart briefly appears above its head, and if the increase is enough to fill a heart, the heart will persist for longer and expand with a special sound effect. Pikmin with a higher friendship level are stronger in mushroom challenges, and after reaching maximum friendship, a Pikmin that wasn't grown from a huge seedling can be sent on an expedition to become a Decor Pikmin.

In fanon games

Friendship
Gameplay aspect

Below this point is where users place their version of friendship.

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