As both Kuonji and Amagi are busy decimating mass-produced Sirens the Upper-class Siren then sends more on their way while she goes beside one of the Taurus Gunpla and makes an evil grin, summoning a small Holographic panel on her right hand similar to Kuonji's. This then somewhat modifies the Scaling Effect of the Mirror Sea (or Battlefield Boundary) as to make the Taurus as large as its MS counterpart.
"Well then, let's start the provisional experiment~"
"Haah!"
After downing a pair of black and red Gunplas in front of him and almost getting caught up in the explosion afterwards Kuonji notices something on his surroundings, or more specifically, his own Gunpla.
"Hey, my Machine's gone full scale again... Hm? What is she...?" As he was still re-adjusting his machine's balance from an explosion Kuonji gets a glimpse of the Elite Siren getting a bit too close on one of the Taurus units.
Forcing herself inside the Taurus' chest unit the Elite Siren eventually merged with the mech, with its square sensors lighten up in light yellow hue. The Taurus then somewhat materializes an additional equipment on its back, which is identical to Tester's Rigging. A huge appendage equipped with six cannons is now attached on its back and additional triple-barreled cannons at the waist, giving the Taurus a firepower enough to rival several artillery-oriented Gundams such as the Buster and Heavy arms.
"What in the... she fused herself with a Gunpla!?" Kuonji was stunned from this current development, with his machine stalling in midair whilst he focuses solely on the now new enemy unit.
"Eheheh..."
The Siren-infused Taurus can be seen glowing with an eerie blacklight effects, giving off an evil vibe to both Kuonji and Amagi. Its square optic head sensor also glows in a bright purple hue, seemingly burning with overwhelming energy.
"This doesn't look good..."
Just then another notification window pops out in Kuonji's screen, updating the Mission Objective.
"Victory Condition: Ally Units Survive for 5 minutes. Defeat Condition: All Ally Units Defeated. Secret Conditions: Defeat Tester (Enhanced Taurus)."
"Okay, that seems a tall order..." Kuonji had his eyebrow raised as he read the winning conditions, given that their situation is constantly changing by the minute.
"Ufufu, well then..."
The now Siren-infused Taurus then charges forward Kuonji's Vent Saviour (+), catching him off guard by tackling his machine and temporarily loses balance and later appearing on his screen attempting to blow up his machine's cockpit with a point-blank cannon blast.
"Khh...!" The white machine narrowly avoids the deadly shot just seconds from making contact by kicking the cannon's barrel, and the boy prepares his machine for a counterattack with several beam rifle shots. And as expected the counterattack barely made any damage at the Taurus' frame due to having enhanced evasion capabilities compared to its base model.
"I see, this is quite an exotic experience..." Getting more excited Tester maneuvers the Taurus like her own body and bombards kuonji's machine with deadly beam barrages and missiles with the intent of destroying the white Gundam.
Overpowering his machine far more than he expected Kuonji had his hands gripping on the controls tighter than usual and barely hanging on it just to match the Taurus' speed and power. Even though this is a first-hand experience for the Elite Siren, Tester was able to maneuver the Taurus with great efficiency due to being directly assimilated into it instead of just manipulating it by hand controls.
"Oh my, this is fun~" At the Taurus' inner working Tester's having a delighted feeling from controlling the machine and attacking the Vent Saviour (+) with extreme vigor.
"To think that she fused herself to a Gunpla, just how powerful these Sirens can be...damn it all..." Amagi had herself cursing under her breath after witnessing this new development unfolds in front of her and unable to do anything about it.
Attempting to get away as the Vent Saviour (+) was cornered by the Siren-possessed Taurus, Kuonji command his machine to fires off its forearm-mounted Gatling gun aiming at the Taurus' head unit. The Siren-possessed Gunpla unit endures the attack, countering with a beam cannon shot that forces the white Gundam to evade in a weird body angle.
"Ngh, she's overwhelming me...!" At the Vent Saviour (+) controls Kuonji was struggling to regain composure as none of the attacks that his machine unleashed at the black Gunpla to hit its mark, missing every time the beams were about to hit her body.
"Come, let's bring out the full potential of our machines!"
"Khh..!"
The battle quickly becomes a dogfight between the Vent Saviour and the Siren-enhanced Taurus, with Amagi still fending off the attacking mass-produced Sirens all on her own. Each time the white Gundam attacks with its beam rifle shots it gets either evaded or blocked by the Siren Taurus' heavily armored forearms. Kuonji then switches to melee battle by having his machine store away its beam rifle on its shield and draw out one of its beam saber for a quick full dash frontal stab, but this attack is also blocked in the same manner.
"Heh, I accept the challenge~" Tester haughtily taunted in front of Kuonji's machine, "A duel, it is then~"
"Khh...!" Kuonji then commands the Vent Saviour to fire away its Vulcan and waist-mounted beam guns simultaneously in hopes of scoring a lucky shot to the Taurus on either its sensors or joints, but...
"Hmph!"
Tester's Taurus deploys a special energy barrier around its overal body so that the Vent Saviour's beam gun and Vulcan rounds dissipates before it reaches the black and red Gunpla's armor. While still defending from the attacks the Siren-possessed Taurus then unleashes a combination of solid and beam projectiles against the white Gundam using its newly equipped Siren Rigging cannons in an all-guns aim attack configuration. Kuonji had his Vent Saviour dashes off to a certain distance away from his opponent avoiding all the ranged attacks but when it's gotten on an ideal position the white Gunpla deploys a dummy balloon along with a smokescreen explosive which lured Tester on attacking the decoy. Using this chance the Vent Saviour changes in MA mode, swiftly flies on a sharp curve that leads it to the black Gunpla's back blind spot, in which it quickly transforms into MS mode and attempts a horizontal, vertical and diagonal slashes at the black machine. However, all of his attacks were easily blocked by the Siren-possessed Gunpla using its huge Rigging extension and the white Gundam ends up being slammed into the shallow waters after blocking a point-blank cannon shot. Kuonji's machine then recovers from the knockdown and flies away from the Taurus right after shooting down a SUMO that's about to attack the shorelines.
Somewhere on the shorelines...
"C'mon kid, you can do this..." An-Xous thought whilst being held by Akagi at this moment, watching the battle on the Safe Zones as he analyzes the situation, "That Elite Siren should be on its toes by now after simulating that much data simultaneously..."
"T-There must be something we can do..." Akagi then pulls out one of her Shikigamis and prepares to deploy them, "M-Maybe, if I can use my Shikigami planes or my Battleship-type Rigging..."
"Don't do it!" But Kaga intervenes by holding her hand, "You know both of your Rigging types hasn't been completed, and you still can't control either of them properly, right?"
"But...!" The red themed foxgirl attempts to argue, however...
"Right now, we have to trust both of them to win this fight..." The blue themed one then tightens her grip on Akagi's wrist, "We have to, else we'll be too helpless on our own..."
"Kaga..."
"..." Meanwhile An-Xous is still weighing his options on whether he will just observe or use his hidden ace-in-the-hole System Control, until he finds the G-Cube Builder lying on the sand after Kuonji accidentally let go of it during the Siren's surprise attack...
Back at the Battle...
"Ghh...!"
"Ara, what's wrong?" Tester gloated as she further pushes the Vent Saviour (+) to extremes by chasing it in a bizaare aerial dogfight while going gung-ho on firing its Rigging cannons, "Aren't your machine designed for this kind of battle?"
"Grrr, Gwwaaggghh!" Kuonji had a hard time keeping up with the Siren-Infused Taurus as it kept barraging his Vent Saviour (+) with beam shots and missiles using its back-mounted rigging. Barely avoiding the series of deadly streams of energy and explosions the white Gundam's armor and shield have now been marred by scratches and burnt marks.
"Here's some more~" The Siren possessed Taurus then unleashes more beam barrage that further complicates her opponent's situation and at the same time summoning more MP Sirens towards Amagi preventing the Foxgirl Kansen to provide support for Kuonji.
"Khh, I ain't going down so easily...!" Though barely hanging on at his controls Kuonji commanded his machine to go on a counter-offensive maneuver despite evidently outgunned by the Siren-infused Taurus, since his situation is getting worse by the minute and defending himself against the multiple streams of energy coming at him isn't just his style. However, ...
"Come on! Show me... Show me the potential of your existence!" Tester then calls out even more Taurus and SUMO units on her side, intent on cornering and showering the Vent Saviour with multiple beam projectiles.
"Shit..." Seeing more enemy reinforcements the boy opted to halt his advance and instead retreats further away from the Siren possessed Taurus as his machine fires potshots at Tester's machine.
"Kuonji! Kh...!" Amagi fires away another round of barrage to relieve the Gundam from being cornered by the MP Siren ships, which she was slightly successful in disrupting the Siren ship's battle formation by destroying the lead ship with gunfire. However, this effort also ends in vain as more and more MP Siren Ships gather around the Kansen and further overwhelms her by numbers and fierce gunfire.
Now that the Vent Saviour couldn't outrun his opponents anymore due to having been surrounded and cornered at the Beach side's southernmost area, where the Battlefield Boundary is barricading his escape to the outside. And since most of its ammo and energy had already been spent on the MP Siren ships and Gunplas his now only chance of breaking through enemy formation is a quick kill beam saber attack.
"This five minute of combat sure feels so long for a winning condition, so I ain't gonna wait that long...!"
Pulling out a Holopanel on his dashboard he then opens a command screen that reads Skill Set. Upon selecting a certain option, a smaller command window then appears beside the main menu.
"Activate pilot skill SEED Mode?"
-Yes
-No
"Alright, here goes nothing!"
As the Vent Saviour was finally cornered by the Siren-possessed Taurus and a squad of similar machines, both sides then stall in midair and anticipates each other's move. And then suddenly one of the Siren Gunplas initiates a melee charge attack on their lone opponent, with the white Gundam's optics glow in bright green and tackles away its opponent through sheer thruster output in response, interrupting the attack and the other Taurus units backs away from the CQC range.
"Time for a comeback!"
Afterwards the stumbling Taurus manages to recover its balance and readies for a direct dogfight confrontation at its opponent, seemingly unfazed from its earlier stumbling. But at that moment of vulnerability was seized by Kuonji as his Vent Saviour already draw out its melee weapon and boost dash toward it. Before the Taurus could even act multiple beam saber slashes riddled the black Gunpla's body in an instant, causing it to explode violently. The rest of the Taurus units then take aim and fires off their handheld beam cannons and beam rifles on a distance; however, they are swiftly dealt with by the White Gundam's series of close-in beam saber attacks, rendering all but one to fall into the ocean.
"!?"
"Haah!"
With the enemy forces are now reduced to just Tester's Taurus, Kuonji commands his machine to rapidly close in as soon as its beam guns had aiming on it.
"Ah!?"
The sudden increase of the Vent Saviour's mobility and reaction time caught Tester off guard that she accidentally loses control of her machine and made herself defenseless against the white Gundam, which Kuonji very much took advantage of that window of opportunity.
"..!?"
In a quick boost dash towards its opponent the Vent Saviour closes in and severe one of Siren-possessed Taurus' arms in a single clean downward slash. This made the black Gunpla stammer in flight, forcing it to slowly descend to the beachside below.
"Ah!?"
"Haaaah!"
After recovering from the initial shock Tester manages to re-orients her machine and poses for a counter melee strike. With the Siren Taurus summoning a beam saber out of thin air the two machines began duking it out in a wild aerial sword fight, creating a scenario of high-level evasion maneuvers and attacks with spectacular slash-and-block sequences. The exchange of melee attacks became the main feature of the battle as the Vent Saviour (+) and the Siren-infused Taurus goes on a one-on-one melee match with each combatants unleashing equal amounts of vigor.
"Yes, that's it...Fight! Fight to the very end!" The Elite Siren taunted even more, with her one-armed Taurus unleashing a series of stabs and slashes at the white Gundam.
"Tch, even with this Super Rare Pilot Skill I'm still having a hard time finishing her off..." The boy cringed as he had yet to close the gap of power between his and his opponent's machine despite the skill buff that he used... however, "But I will win this fight!"
The imposing beam saber bout lingers for a few seconds until the Vent Saviour gains the upper hand against Tester's Taurus as it slices off its remaining arm, finally slamming it to the waters below. It then points its beam saber at the black Gunpla and is poised to deliver the finishing blow by a beam saber stab in the chest.
"Haaah!"
"Khhn...!"
He's certain that with this attack, it's going to be a sure win for him. It was supposed to end there... until the Vent Saviour (+) had its beam saber deactivated just before it could penetrate the Taurus' chest armor.
"Ah!?"
"...!?"
At first, he blanked out for a while as to why did this happened. And then he instantly realized that the cause was quite simple. The Vent Saviour (+) is powered by a Hi-capacity Battery rather than a nuclear reactor, meaning it can run out of energy relatively quick if it uses its energy-based weapons with reckless abandon.
"Warning: Critically Low Energy Levels. Switching to Emergency back-up support. Disabling Beam-type weaponry."
"Shit! Not now!"
With Kuonji's Gunpla powering down as it runs out of energy the Vent Saviour slowly falls down into the waters below and stumbles onto the beachside as it gradually loses color with the Phase-Shift Armor deactivating, leaving him more vulnerable with enemy gunfire...
"Dammit, dammit! Dammit!"
"Oh...?"
"Kuonji! Khh..." Amagi was about to give covering fire to the white Gundam, but she was also surrounded by the MP Siren Ships that kept attacking her en masse and is now forced to take evasive maneuvers due to their sheer numbers.
"Now then, let us conclude this experiment with your head as my prize~"
"Dammit...!"
With controls unresponsive, several warning signs appearing on his screen Kuonji was already anticipating his 'Mission Failed' prompt. But before the Siren-possessed Taurus delivers the finishing blow with a beam cannon shot...
"...You will not!"
"!?"
A black and golden Gunpla then tackles the Taurus with enough force so that it tumbles into the waters below. Focusing solely on the machine Kuonji then attempts to regain his orientation and aims the Gundam's beam rifle at the newcomer, but...
"...A SUMO?"
"You alright there, kid?" The said SUMO then contacts the Saviour (+) via comm link, with a blurry chat window on Kuonji's main screen.
"That voice...An-Xous!?"
Ep 2C End