Rumble

The rumble is a built-in feature of the GameCube, Wii, Wii U, and Nintendo Switch controllers. It provides tactile feedback to some actions happening in the game. Events that cause the controller to rumble are sometimes accompanied with the camera shaking, to further enhance the sensation of a powerful action.

The rumble feature can be enabled or disabled in Pikmin and options menu. In New Play Control! Pikmin and New Play Control! Pikmin 2 however, this setting has to be changed on the Home menu, accessible by pressing on the Wii Remote while playing any Wii game.

Oddly, in, actions that will make player 1's controller rumble will also make player 2's controller rumble, though weaker. This is true regardless of what game mode or controllers are used.

List
The following is a list of actions in the game world that cause the controller to rumble.

Pikmin

 * Whistling
 * Throwing a Pikmin
 * The current leader is hurt
 * Connecting a punch (only in New Play Control! Pikmin)
 * Plucking
 * A bomb-rock explodes nearby
 * Certain enemies do something with force nearby:
 * A Spotty Bulborb or Spotty Bulbear walks
 * A Burrowing Snagret burrows or unburrows
 * An Armored Cannon Beetle walks or shoots
 * A Mamuta walks or slaps the ground
 * A Pearly Clamclamp opens or closes itself
 * A Goolix' nuclei clang
 * An Emperor Bulblax unburrows, jumps or swipes its tongue

Pikmin 2

 * Whistling
 * Throwing a Pikmin
 * The current leader is hurt
 * Plucking
 * A bomb-rock explodes nearby
 * Certain enemies do something with force nearby:
 * A Gatling Groink's shots explode
 * A Wollywog or Yellow Wollywog lands
 * A Creeping Chrysanthemum emerges
 * A Mamuta slaps the ground
 * An Empress Bulblax hits a wall
 * A Burrowing Snagret or Pileated Snagret burrows, unburrows or stomps
 * A Beady Long Legs or Raging Long Legs falls or stomps
 * An Emperor Bulblax unburrows, jumps or walks
 * A Man-at-Legs emerges or one of its shots connects
 * A Waterwraith lands or stomps its front roller
 * A Segmented Crawbster lands, hits a wall or stomps its claw
 * A Titan Dweevil emerges or stomps