Panic in the Pikmin series refers to any non-hazard event that causes Pikmin to scatter and thrash around in random directions. In a panic scenario, something has scared or affected them to the point where they separate from a leader and run off, and while these Pikmin are not in any direct danger, they risk running into a hazard or an enemy. Panic scenarios occur in Pikmin 2 and Pikmin 3, and in both games a panicking Pikmin can be returned to normal by whistling it.
In Pikmin 2, Pikmin in a panic will behave differently depending on the exact source of panic. There are several scenarios that prompt specific Pikmin to panic:
In Pikmin 3, panic scenarios visually affect Pikmin, and though they spread out in random directions, they will eventually stop panicking on their own accord.