Gauntlet Groink

The Gauntlet Groink is a highly-dangerous Groink boss found in the Sand Kingdom of Pikmin Z. This giant Groink appears less like a fish, and more like a well-oiled machine: a rounded orb body, with a single eye at the center, behind the windshield, and four pipes down its back that release steam. It holds both the typical cannon mouth, and two side-by-side shooters for rapid fire attacks against you.

Biology
The Gauntlet Groink is the titan of Groink species, and highly advanced in attacks towards its opponents. Throughout the fight, it's main attacks consist of a charged projectile from its mouth, which explodes on impact with a large radius; a set of machine guns that shoot out rpojectiles similar to that of a Man At Legs, though it sets them on fire rather than killing them instantly; and a release of a wave of water from it's true mouth, let out in a wave.
 * Diet:???
 * Predators:N/A

Piklopedia entry
''The Gauntlet Groink is the ultimate doomsday weapon of Groinks, I have to say. So many different attacks stacked within that biomechanical shell, and all of them dealing a lot of damage. If this beast is indeed the future for Groink evolution, I do have to wonder what kinds of weapons will spawn up after time.''

Strategy
The method of fighting a Gauntlet Groink is a bit of a complicated one. At the beginning of the fight, the Gauntlet Groink will only shoot the cannon mouth at you, which you'll have to avoid during the attacks. In order to hurt it, you're going to have to wait until the Gauntlet Groink shoots out a Cannon Beetle rock at you, which you'll have to lure it to hit the Groink itself. Once this happens, a bit of its metal armor will break, and leave an opening for your Pikmin to attack it. However, after it shakes off the Pikmin, it'll harden into another shell, which can't be destroyed for the remainder of the fight. Keep attacking it until it drops dead.
 * Each shake off will trigger its machine-guns, which you'll have to run non-stop to avoid until they deactivate.
 * when it's health is at 75%, it will then begin to shoot out the straight-shot rocks at you.
 * when it's health is at 50%, it will start using the water wave, which will cover the floor with water, which will drown your Pikmin unless you get them on floating debris - which fall from the ceiling after it stomps in anger prior to attack.
 * when it's health is at 25%, it'll use all of its moves to attack you, all at random.