Flint Queen

The Flint Queen serves as the boss of the cave Flint Palace and doesn't directly harm the player's Pikmin. Instead, it summons Doodlebugs to poison them. To defeat the Flint Queen, simply throw Rock Pikmin to break its shell. Once its shell is broken, the Flint Queen will become extremely agitated and summon increasing numbers of Doodlebugs. Use Purple Pikmin to finish it off.