Arctic Cannon Beetle

The Arctic Cannon Beetle is a boss in Pikmin 4, and the adult stage of the Arctic Cannon Larva. The Arctic Cannon Beetle appears similar to the Armored Cannon Beetle and Horned Cannon Beetle, with a light blue shell, blue skin, red eyes, and no blowhole. It also spits out snowballs instead of boulders. Due to its lack of a blowhole, it breathes through its mouth instead, allowing it to inhale groups of Pikmin but also forcing it to expose its abdomen as it inhales.

Behavior
The Arctic Cannon Beetle patrols a small area, scanning its surroundings, until a leader or Pikmin approaches. Upon noticing them, it turns towards them and begins to inhale. After a couple seconds, its wings open up to reveal its vulnerable abdomen as it inhales more powerfully, being able to suck up the player and all of their Pikmin. If a bomb rock is thrown at it while it is inhaling, it eats the bomb rock and takes roughly 1/6th of its health in damage. After inhaling, regardless of whether it successfully inhaled any Pikmin, it spits out a large snowball. The snowball can pick up Pikmin and, if it hits a wall, cause icicles to fall that can crush Pikmin. If any Pikmin were inhaled, half of them are eaten and the other half are spat out within the snowball. It then shakes off any attacking Pikmin and closes its wings before inhaling again.

Locations
The Arctic Cannon Beetle appears in Subzero Sauna and Cavern for a King.

Strategy
Riding Oatchi is recommended, since Pikmin cling to his back instead of trailing behind you, which is important for avoiding it's inhale and the icicles that fall from above. Stand in front of the Arctic Cannon Beetle to get it to start inhaling, then quickly circle around behind it. When its wings open up to reveal its abdomen, start throwing Pikmin at it or rush it with Oatchi. Repeat this process two to three times and the fight should be over.

It should be noted that dealing a significant enough amount of damage, but only immediately after exposing the weak point, the "second phase" increased-force suction will be cut short.