Sirena Beach
The mechanized Carracosta mech hummed back to life as the hatch shut closed with Bowser Junior and Mario inside it, within the mech; a pair of mech hands raised up from the floor and grabbed onto the sides of FLUDD while a seat raised up beneath Mario for him to sit on. A set of tubes clasped through the arms and into FLUDD while echoing a 'kchunk' of FLUDD getting locked in into the mechanisms.
Junior sat sat on his own chair behind Mario that was attached to the floor with a wide array of controls and buttons opposite of the controls that raise up in front of Mario; the young tyke glanced over his shoulder as the turtle mech began to hover above the sand on the outside, Junior smiled excitedly, "Alright Mario, I've simplified the controls for ease of use, so even you should be able to understand the basics of moving the mech around." he explained.
Mario glanced shortly back at Junior, before looking forward as he tested the dual joy analog sticks with triggers and buttons on them; with a few quick pulls and pushes on the controls, Mario nodded to himself before a set of monitors plopped up for him to see the live play by play of him moving the mech around. With Mario's vision less obscured, and now given the opportunity to pilot the mech better, the hero of the Mushroom kingdom hovered the Carracosta mech around to face the Gleeok boss mech.
Slamming his fist down on the big red button that said boost, Mario found himself feeling the effects of the g-force present from the amount of thrust the boosters on the back of the turtle shell emitted; the sound of the thrusters was loud enough to be heard as a dull thrum while Mario steadily controlled the Carracosta turtle shell mech to surf along the surface of the ocean towards the twin headed dragon mech.
Both heads of the Gleeok boss mech turned to show the Koopalings Morton and Wendy had ceased their bicker and concentrated on the battle in earnest, the twin heads lowered down to begin the first attack by attacking with twin flame breaths at the incoming Carracosta mech.
Within Junior's mech, Mario reacted with enough time by swerving the mech to the right, the entire shell he piloted tilted to the right and caused a wake in the ocean as it curved around the incoming breath of fire from the Gleeok mech dragon; as the flames steamed past the wake of ocean waves while causing steam to rise from the two elements interacting with each other, Mario took quick notice of the various other buttons on the twin joysticks that allowed him to pilot the mech.
There was also a soft beeping sound as the lock on system worked it's targeting system to lock onto the giant dragon mech, while Mario continued to pilot the mech, the larger Boss mech slowly turned around which granted Mario enough time to get a good hard lock into the boss as he circled around the backside of the boss.
"Mario." FLUDD spoke up as the target system locked onto the spine of the dragon mech, "I believe it is prudent to aim and fire into the dorsal fins that act as the mech's exhaust measures, taking those out will no doubt impair the Dragon Mech." She informed Mario with a calm instructional tone.
Mario nodded in agreement as he got a good lock on, and pulled in the trigger buttons for his water missiles; with the sound of harsh whistling, several water missiled went flying from out of the shell and into the air before arcing down and careening towards their intended targets.
Junior glanced over his shoulder while he worked at his own little control terminal to make sure the systems were running smoothly, "Yeah, I wanted to put the exhaust pipes onto the head as horns, but the size of the Gleeok mech demanded a more intricate exhaust pipe system to compensate for the sixty four cylinder engine I built into it."
Back outside with the mech battle, the missiles landed true into their targets, and with a loud blast, the Gleeok mech boss stumbled forward while an eruption of fire exploded out of its metal spine; while the boss mech struggled to be controlled by the Koopalings from within the heads, the Carracosta shell mech continued its surf along the ocean surface.
With a sharp turn and causing another large wake of waves in the ocean, the shell mech jettisoned forward towards the back of the Boss as it finally stood up with slight tremors in its mechanical body; from under the shell mech, a rocket propellent force jettisoned the shell up into the air to somewhat fly over the boss.
Meanwhile with the Gleeok boss mech, the twin heads were piloted to quickly turn their heads and attempt to retaliate back at Junior's mech. "Not so, wait, where'd he go!?" Morton's gruff voice sounded out from the left head.
"His mech should have been behind us!" Wendy's voice echoed out from the other head as she piloted the head to look around her side.
From inside the Carrocosta shell mech as it flew over the Gleeok mech, Mario piloted the shell to steadily turn upside down and unload a payload of water missiles into the remaining dorsal fin exahust pipes that were visible.
Junior however let out a squawk of indignation, "W-w-w-wait! I didn't install-wah!" He yelled as Mario made the shell fly upside down, all the while Bowser Junior himself found himself clinging onto his seat as it tilted to the side before finally dangling off from his chair as he held onto it with his hands. "Mario! I didn't design this shell mech to be piloted upside down!" he yelled in caution while Mario Piloted it back right side up to land back into the ocean with a harsh splash.
While the Gleeok mech let out a mechanical roar as its engines struggled to work with what remained of the exhaust systems, inside the Carracosta mech on the other hand was a different story altogether.
Junior blinked rapidly a few times as he found himself lying upside down in his chair, before sliding off of it to the floor, "I…I didn't have enough time to create this mech to be able to handle upside down dynamics." he whined as the mech began to make strange noises.
FLUDD spoke up as Mario tried making the shell mech to move, only to make sounds of its engine being flooded…no pun intended, "Junior…you didn't properly install a gyroscopic flood system, correct?"
Junior groaned as he picked himself up off the floor while rubbing his head, "It would have taken me a few more hours, but I wanted to get it out quickly before Mario faced off against more of the koopalings." he answered with a petulant tone.
Warning klaxons blared within the systems as the montiers within the mech showed the mech box rearing its twin heads back, and attacking one more time with a full on frontal head butt. "Mario, push the 'do not press' button!" Junior hopped in surprise at the sudden brazenness of the two Koopalings to attack a prone mech of is.
Not needing an explanation, as no doubt the button was most likely a last resort, Mario quickly leaned forward in his chair and slammed his fist into the red button; the next moment, both Mario and Junior felt the g-force of the shell mech getting propelled forward while a wide blast of torrential water blasted out the back of the shell at the incoming twin heads of Mecha Gleeok.
Outside the mech, both Morton and Wendy screamed as the heads they were in ended up getting decapitated off the necks and blasted off into the sky, before becoming naught but a twinkle in the sky.
Sirena Beach
A smoking shell mech with frayed wires hanging out the opened shell hatch was left deposited in the sand of the hotel beach, while Mario and FLUDD were found laying separated; Junior however was spotted dangling his feet while half of is body was inside the engine compartment as sounds of banging and wrenching could be heard as echos.
Mario picked himself up and shook his head, before banging his ears to get the sand out before collecting FLUDD to put her back on over his shoulders. "Are you okay Mario?" she asked while turning her nozzle to speak over to him.
Mario glanced over his shoulder and nodded, before walking over to see how Bowser Junior was holding up.
As Mario approached the smoking turtle shell mech, Bowser Junior finally pulled himself out of the engine hatch and plopped back down onto his feet as he held a spherical object, "There we go, I'll be needing this to improve on the gyroscopic mechanisms." he remarked with a soot covered faced from working inside the engine compartment.
"Junior." FLUDD began to say as Junior pocketed the object in his hand into his shell, "while the mech was interesting, to say the least, I think you need to improve on covering up on your mistakes and not rush through on your creations." she advised.
Junior chuckled as he palmed his side with one hand and pointed up to the sky with his other arm, "Nonsense, my future AI companion, mech science is an ever evolving science!" He declared in a boastful tone.