Fizzling Waddlepus

The Fizzling Waddlepus is a boss encountered in Pikmin: Spark, she is the first boss of the game encountered in the Saltwater Glade but found as a mini-boss in other locations such as Fertile Savanna and Rust Labyrinth. It is a giant dark purple female Waddlepus covered in small boils. She usually sleeps in a mixture of warm mud and her own mucus while her Waddlepus kin guards her den. In Saltwater Glade she guards a large piece of refuse that is needed to head to the next area but she won't come out due to her bath being plugged up by mud platforms. By using Blue Pikmin to drain the small lakes holding these platforms and Purple Pikmin to crush said Platforms a geyser comes out waking her up and starting the fight. She stays in the middle of the arena spitting large purple bubbles that homes in on the player, when they come far enough they explode realizing a lingering puddle of Poison that lingers as sludge, due to the lack of White Pikmin at the time this is extremely dangerous. By swarming the Fizzling Waddlepus you can wear it down until it reaches 1/4 health where it starts spitting balls that when crashing into the walls becomes a normal Waddlepus adding to the annoyance. When fought as a mini-boss she gains this Waddlepus spitting attack at full health.

The first time you defeat her she drops the Engine Tracker which is worth and as a miniboss it drop the Crunch Manager worth. When fought as a normal boss you also unlock the ability to upgrade your ship to take you to Cavern of Cobwebs

Ultra-Spicy Differences
It is now covered in a slippery toxic sludge meaning Pikmin can't latch onto her without being poisoned and White Pikmin can't attack her due to the slickness of her skin. But when she spits her purple bubbles the sludge comes off temporarily leaving a window to attack. She also does her Waddlepus shooting attack at 1/2 health rather than 1/4 health in her first battle.

Trivia
The Engine Tracker is a and the Crunch Manager is a