"Roar!"
The Spinosaurus bared its jagged teeth and lunged at Four Arms, jaws wide, intent on ripping him to pieces.
"Noisy."
Four Arms shifted aside with ease, then countered with a crushing punch straight to the creature's skull.
BOOM!
The impact sent the Spinosaurus staggering backward, its massive head spinning from the blow. Four Arms' sheer strength was overwhelming—it nearly knocked the beast out cold.
"Your turn!"
Four Arms roared, his four legs pounding against the ground as he charged toward the Ancient Ape with explosive speed.
If he could take down the Ancient Ape, he'd unlock a new alien form and reset the cooldown—meaning he could transform again immediately, without waiting for the Omnitrix to recharge.
"Moo!"
Just as Four Arms was about to reach his target, the massive mammoth beside them let out a thunderous bellow. Its colossal frame barreled forward, charging straight at him.
Grabbing a massive fossil bone nearby, Four Arms swung it with tremendous force, smashing it squarely into the mammoth's skull. The bone exploded into countless fragments under the impact, scattering through the air like shrapnel.
Then, seizing the mammoth's trunk, he planted his feet firmly like anchors in the ground. Using his body as a pivot, he spun, hurling the mammoth's enormous bulk around and whipping up a violent gust that rippled through the hall.
"Cuz, that's amazing!" Gwen gasped in awe. The towering mammoth looked like nothing more than a toy in Lucian's hands.
"Cool! This alien's insane—and he's got four arms! Let's call him Four Arms!" Ben shouted, eyes gleaming.
Grandpa Max's expression softened into a proud smile. "Told you he'd be fine. Those beasts could train for another hundred years and still wouldn't stand a chance against your cousin."
CRASH!
Four Arms released his grip, flinging the mammoth across the room. It smashed into the iron gate, bending the metal inward before collapsing to the ground with a heavy thud, too dazed to rise.
"Roar!"
The Ancient Ape bellowed furiously, swinging its massive fist toward him.
"Bring it on!"
Four Arms caught the blow with two of his hands, then unleashed a blinding barrage with the other two. His fists struck like thunder, slamming relentlessly into the ape's chest and abdomen.
Each hit landed with devastating force, bones cracking beneath his blows. The Ancient Ape roared in agony, feeling as if its entire body were being torn apart.
The sheer power behind those strikes was terrifying.
Within moments, the beast was on the brink of collapse, blood spilling from its mouth. Desperate, it bared its fangs and lunged at Four Arms' neck—
But before it could bite, its pupils shrank in shock as searing pain erupted from its abdomen.
It looked down in disbelief—Four Arms' knee had driven deep into its gut, the force so immense that its insides churned violently, blood surging out of control.
"Ha!"
Four Arms brought down his elbow like a hammer, striking the ape's back with a deafening crack that echoed through the hall.
WHOOSH!
A shockwave burst outward. The Ancient Ape's bones shattered instantly. It coughed up a mouthful of blood, staining the floor red.
Its massive eyes widened in disbelief, then slowly dimmed as its body went limp and collapsed to the ground, lifeless.
Four Arms exhaled sharply through his nose and tossed the corpse aside without a second glance.
The so-called Ancient Ape had long been dead—buried millions of years ago in the prehistoric age. It was nothing more than a puppet, forced back to life by Dr. Animo's gene reactivation ray.
It wasn't truly alive—just an empty shell. What Four Arms had done was simply let the Ancient Ape rest in peace, returning it to where it belonged.
[Ding~ Congratulations, Host, on defeating the Ancient Ape]
[Reward: Random Hero Gene Chest acquired]
[Stored in inventory. Can be accessed anytime]
A sequence of mechanical notifications echoed in Four Arms' mind.
Beep... beep... beep...
Suddenly, the Omnitrix on his arm flashed with blinding red light, then erupted violently, reverting him to his human form.
Lucian lifted his wrist, staring at the Omnitrix's crimson screen. His eyes hardened.
"Open!"
Whoosh!
The moment he spoke, the chest in his mind burst open, releasing a brilliant flare of light.
[Ding~ Congratulations, Host, on obtaining a new hero]
[Swampfire: Possesses abilities of fire projection, regeneration, shape-shifting, and flight. Can emit swamp gas that ignites into powerful explosions, and manipulate plants at will.]
"Swampfire?" Lucian froze.
That was the powerful alien from Ben 10: Alien Force. He hadn't expected to unlock it so soon.
Beep...
The next second, the Omnitrix's red screen shifted to a deep blue.
[Ding~ Omnitrix calibrating...]
Lucian immediately understood—the Omnitrix was evolving, just like in the original series.
But before he could fully process his excitement, a thunderous rumble echoed nearby.
The Spinosaurus and the Mammoth, their eyes burning crimson, radiated murderous fury. Their massive bodies blotted out the light as they charged toward him with earth-shaking force.
Thud... thud...
Each step made the floor quake. Cracks spread across the walls like spiderwebs, and dust rained from the ceiling.
The Omnitrix, still in calibration mode, continued to glow blue.
"Come on, hurry up!" Lucian gritted his teeth, retreating as he watched the two monsters close in.
Outside the museum, the others caught sight of the danger.
"This isn't good! Lucian's in trouble—let's go help him!" Grandpa Max reacted first.
Ben's eyes hardened. He wasn't about to let his cousin face those things alone.
He broke into a sprint toward the prehistoric beasts. "Hey, ugly! I'm right here! Come and try your luck with Ben Tennyson!"
At the same time, Gwen and Grandpa ran in as well, shouting to draw the monsters' attention.
"Roar!"
"Moo!"
Instantly, the Spinosaurus and Mammoth turned, their rage redirected. With thunderous steps, they charged toward the trio, their killing intent so intense it seemed almost tangible.
"Run!" Grandpa shouted, pulling Ben and Gwen toward the exit.
The two ancient beasts, now in a berserk frenzy, smashed through the floor and stormed after them, leaving a trail of destruction through the museum.
Lucian watched them go, his brow furrowing. He glanced down at the calibrating Omnitrix, clenched his jaw, and ran after them.
Those two creatures were far too strong for Ben and the others to handle. Even conventional weapons wouldn't scratch them—let alone three unarmed people.
Beep... beep... beep...
As Lucian burst out of the museum, the Omnitrix emitted another sharp signal.
He stopped and looked down.
The blue light on the screen faded, replaced by a blinding emerald glow that grew stronger by the second.
The brilliance was so intense it burned his eyes, forcing him to shut them as heat pulsed through his wrist.
When the light finally subsided, the newly transformed Omnitrix came into view.
Lucian raised his arm, excitement flashing in his eyes.
This... this was the Recalibrated Omnitrix!
Its design was sleek and compact—smaller than the original prototype but even more stylish. The iconic Omnitrix emblem remained at its center, the unmistakable mark of the device.
To adapt to Swampfire's DNA, the system had preemptively evolved the Omnitrix, enabling Lucian to summon the new Alien Force hero.
Seeing the calibration complete, Lucian wasted no time. He pressed the side button, and the central panel sprang open.
Each newly unlocked hero could be summoned instantly without a cooldown—the recharge would only apply afterward. The calibration process had been the only delay.
The upgraded Omnitrix now projected 3D holograms instead of flat icons, displaying each alien form in vivid detail.
Four Arms, Ripjaws, Grey Matter... Lucian scrolled through them, finally stopping at a tall, slender figure wreathed in organic flame.
"You're up."
He slammed his palm down on the dial, and a burst of green light exploded outward...