Pikkarikun

Pikkarikun (ピッカリクン) appear in Wario Land: Super Mario Land 3. They are small thunderclouds sporting an impish face that float above Wario. When they flash, they will drop lightning bolts down on him. They are invincible.

If their lightning bolts hit enemies, they will turn into 10 Gold Coins.

Their name comes from pikapika, onomatopoeia for electric sparkling.