Vegeta laughs. "You'll give me a chance?! How amusing! You, a low-class warrior, think that you're able to match up to me! I was led to believe that the fighters on this planet can sense energy, and yet my scouter says that your power level is only 10000, while mine is 18000! What makes you think you stand a chance?"
Goku stares at Vegeta in silence. As soon as Vegeta opens his mouth to continue talking, he finally speaks.
"Kaioken."
"Kaiowha--" before Vegeta can finish the word, Goku's fist connects with his already broken nose, launching the short man backwards. Goku follows up on his first attack, launching a flurry of blows that turn the Saiyan Prince's face into a bloody mess. In the middle of Goku's combo, Vegeta suddenly lashes out, kicking the martial artist away. He then fires a series of Ki blasts at Goku, attempting to overwhelm the opposing Saiyan with pure brute force. Unfortunately for him...
"Kaioken times three!"
Goku easily swats away the onslaught of blasts, his power level now over 30000, far higher than Vegeta's 18000. What follows is a complete beatdown by the orange-clothed man. Every attempt at offense Vegeta makes is quickly battered down, and all his attempts to defend against Goku's attacks end in failure. He even takes a few potshots at Raditz's body, hoping that it will distract Goku, but it is all for nothing. In less than five minutes, Vegeta is lying on the ground, staring at a seemingly undamaged Goku in shock and... a sizeable amount of fear. Goku, for his part, isn't doing so well either. After all, he never did get the chance to stop for Senzu Beans after his journey down Snake Way...
"Had enough yet?" Goku asks, hiding his lack of stamina as he stares down at the battered Saiyan Prince.
"You... how?! How is a low-class Saiyan this strong?! Raditz was able to kill you last year! How could you improve so much in such a small amount of time?!" Vegeta says, not believing what he's seeing.
"I trained hard."
The short Saiyan looks on in bafflement as Goku turns away.
"This fight is over, you've lost. Leave my planet and never return." the martial artist says, slowly walking towards Raditz's body.
After an entire minute of silence, a rage filled voice fills the air. "How dare you... how dare you look down on me! I am the Prince of all Saiyans! I refuse to be beaten by a low-born wretch!"
Goku suddenly senses a large amount of Ki gather at the end of Vegeta's hand. With a sigh, he turns towards the 'beaten' Prince, spotting the bloody figure of Vegeta, holding an orb of white Ki...
"The form disgusts me... but it'll be worth it to crush you!" Vegeta shouts, launching the ball of Ki into the sky.
"Burst open and mix!"
While Goku looks on in confused silence, the Ki ball explodes in the sky, staying in the air as a huge, white orb. Oddly enough, Goku feels a faint sense of deja vu as he stares at the orb. A faint sense of... familiarity? The orb is one of the most beautiful things he's ever seen, only... something is missing. For a brief second, he regrets not having a tail.
"What...?" he says, turning towards Vegeta as he feels the Prince's Ki spike.
The short Saiyan looks to the sky with a wicked grin on his face. He takes deep, heavy breaths as he begins to grow, quickly becoming taller than Goku, then taller than Raditz... and then taller than the nearby hills of stone. Soon, a giant ape towers over the martial artist, immense power filling every inch of the creature. The ape's deep voice echoes throughout the area.
"I must admit, getting rid of the moon was a clever strategy, but Saiyan Elites can create artificial moons with our Ki! Now that I've become a Great Ape, there's nothing you can do to stop me!"
"A Great Ape?!"
"You didn't know? When a Saiyan with a tail is infused with enough Blutz Waves, like the ones that come from a moon, they transform! Our power is multiplied by 10 in this form!"
"Then the one who killed Grandpa Gohan, and the one who destroyed the world tournament arena..." Goku mutters, finally having a realization.
"What's that Kakarot? Speak up! I can't hear you down there!"
Goku grits his teeth, launching himself at the ape as he multiplies his power with the Kaioken. The monster smacks the Saiyan out of the air, surprising Goku with his speed. As he goes flying backwards, he fires a weak Kamehameha from his feet, stopping his momentum and launching himself at Vegeta. This allows him to narrowly avoid Vegeta's next attack.
Before the behemoth can attack again, Goku arrives at his face, nailing the Great Ape directly in the left eye with a powerful kick. As Goku's leg gets buried in his opponent's pupil, he hammers Ki blast after Ki blast into the same eye, seemingly attempting to drill through it. The ape roars, forcing Ki out of his body in panicked rage. Goku extracts his leg just as Vegeta forms a sphere of destructive Ki around him, the pure power in it having enough force to send the martial artist flying back, his body badly burned by the heat of Vegeta's Ki...
Clutching his blinded eye, Vegeta runs at the retreating figure of Goku, catching him with a massive shoulder bash that sends Goku through a nearby pillar of stone. He follows up on this, swiping overhead at Goku, who tries his best to dodge out of the way, luckily negating most of the force of the blow. However, despite the fact that the hit barely clipped him, Goku gets smacked out of the air, slamming into the ground hard enough to kick up a cloud of dust. Reacting before he can think, Goku rolls to the side as fast as he can, avoiding a stomp that would've flattened him. He flies high into the air, peppering Vegeta with Ki blasts to catch the ape's attention. Once he's sure that he's been noticed, his hands come together at his side, a ball of blue Ki slowly building in them.
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"Kame..."
"A wave of Ki?! That's your plan?! HA! Your little tricks and techniques won't help you anymore, Kakarot! Allow me to demonstrate what true power is!" Vegeta shouts as a giant beam of Ki builds in his mouth.
"Hame...."
The Ki continues to build as both fighters concentrate their energy. With a powerful roar, the Great Ape's beam of Ki explodes out of his mouth, aiming upwards towards the small, flying figure opposing him.
"HA!"
With a roar equaling the ape's, Goku launches his attack. As both of the beams approach each other, the Saiyan from Earth shouts one last time.
"Kaioken... times five!"
The power of his attack multiples rapidly, and before long, both of the attacks meet...
The ape grins as Goku's Kamehameha is easily overwhelmed, immediately getting pushed back. His grin quickly fades as the weaker man's attack... bends out of the way?!
Goku continues to pour power into the Kamehameha, ignoring Vegeta's beam of Ki as it reaches him. Vegeta watches in shock as the blue wave of energy moves around his attack, arriving at his good eye in an instant...
"ARGHHHHH!"
An agony filled scream fills the air as the Kamehameha drills into Vegeta's eye, causing the Princely Ape to close his mouth, cutting off the energy attack that engulfs Goku. Silence fills the air as both fighters collapse on the ground, neither moving.
...
...
...
Goku's eyes open, staring at the white ball of Ki in the sky. His muscles burn, his skin literally burns, his bones feel like they're cracked, and he's pretty sure he's got a concussion... but he's alive.
He's won.
Groaning, he sits up, staring at his ruined martial arts uniform in dissatisfaction.
'I hope Krillin hurries up with those Senzu Beans.' he thinks with a small chuckle.
He soon turns his attention towards the giant, unmoving carcass of Vegeta, who died to the hole drilled through his eye by the Kamehameha.
'Good thing he was already injured, or his blast may've killed me...'
Shaking his head, Goku gets to his feet, approaching the other unmoving Saiyan... approaching his brother, Raditz. He grimaces as he stares at the tall Saiyan, mentally counting off a list of injuries.
'Left knee, right hand, left thigh, right arm, ribs, left hand, nose, jaw, and left cheekbone are all broken... his right eye is completely destroyed, and those are just the obvious injuries. It's a miracle he's lasted this long...'
Sighing, Goku carefully lifts Raditz's body into his arms, and begins to fly towards Krillin's energy.
'I don't know why he did it, but he saved Gohan and Krillin. Getting him healed up is the least I can do... besides, I'll be able to handle him if he isn't peaceful.'
Suddenly, the wasteland begins to shake, startling Goku out of his thoughts. Bewildered, he turns around, eyes falling on the unmoving Great Ape, except...
...the ape is no longer unmoving.
The furry behemoth thrashes around, screaming profanities the entire time. Eventually, the beast is able to rise to his feet, fingers clawing at the holes where his eyes once were.
"WHAT'VE YOU DONE?!?! WHAT'VE YOU DONE TO MY EYES?!?!?!?! I CAN'T SEE!" Vegeta cries out, swinging wildly around him.
Goku carefully sets Raditz's body on the ground, making sure that he's a decent distance away from the fighting, before he silently flies over to the injured ape. Landing on the ground, he stares at the enemy, feeling pity despite the deadly situation he finds himself in. Soon after, he raises his hands into the air, gathering Ki from the planet. Keeping his breathing as light as possible, Goku begins to charge the Spirit Bomb.
Vegeta is silent now, listening closely, focusing. Unbeknownst to Goku, the Prince of all Saiyans isn't just listening... he's learning. He's practicing. The behemoth's mind goes back to what Raditz said about learning to manipulate Ki like the Earthlings. He thinks about how the Earthlings don't seem to need scouters to sense energy, and he tries to copy that. If they can do it, why can't he? He's the Prince of all Saiyans! He's naturally better than them! If he puts effort into training, into learning, he can easily surpass all the trash on this planet! The battlefield is silent for several minutes. Goku focuses on collecting enough energy to put the monster down, while Vegeta tries to sense Goku's Ki. Eventually...
'It's ready!' Goku thinks, eyes snapping open in joy...
...only to see a fist larger than his body. The gloved fist lands a direct blow on Goku, throwing him backwards at speeds far faster than Goku could achieve without the Kaioken. Eventually, after crashing through several small hills of rock, he lands in a bloody, broken heap on the ground. Cruel laughter fills the air as the blind ape dashes after Goku. Soon, the Prince arrives, lifting his foot above the helpless Saiyan.
"You and Raditz have caused me far, far too much trouble today. I'll make you suffer, then I'll blow this planet into space dust!" he says, stomping down on Goku's legs.
The martial artist's legs snap with a sickening crunch, causing any silence that existed in the wasteland to be drowned out by Goku's pain filled screams. The Prince of all Saiyans grins madly, before he suddenly senses a quickly approaching energy.
"That Earthling friend of yours is almost here. How about I kill him in front of you?" Vegeta asks, grabbing Goku's limp body with one hand as he dashes towards Krillin.
Krillin grits his teeth in anger as he spots the Great Ape... more specifically, as he spots what the Great Ape is holding.
"Dammit! Hold on Goku!" he yells, sending all the energy he's managed to regain into his right hand. Holding it above his head, the bald fighter forces his Ki to gather, to compress into the shape he chooses. He is soon left with the largest Destructo Disc he's ever made, the yellow disc easily dwarfing him in size. With a shout of exertion, he launches the attack at Vegeta.
Vegeta laughs as he runs down the Earthling, swatting aside the rocky hills like flies, all to get to his target quicker. The weakling is just standing there! He must be petrified with fear! This is going to be--
Vegeta's newly acquired Ki sense suddenly shows a large concentration of energy heading towards him... well, large by this planet's standards. But for him? In his Great Ape form? It's pathetic. Such a tiny amount of energy could never harm--
If Vegeta had eyes, they would widen at this moment. His scattered mind suddenly remembers Nappa. He remembers how Nappa died. Cut in half by a disc of energy far weaker than him...
He dodges to the side in a panic, but it was far too late. White-hot pain flashes through his mind as Krillin's Destructo Disc cuts through his arm... specifically, the arm holding Kakarot. With a cry of pain, Vegeta clutches the stump where his right hand used to be, cauterizing the large wound with his Ki.
"AHHHHH! BASTARD!" he screams, senses focusing on Krillin, who is rushing towards Goku's body at full speed. The infuriated Saiyan raises his remaining hand towards the bald man, gathering energy to wipe both the Earthling and the planet out... and then he gets thrown forward, his injured back crying out in pain as something hits it hard. He snarls like a wild animal, turning around to meet his new opponent...
A second Great Ape, who looks even more damaged than Vegeta himself, roars a challenge. The creature's jaw hangs loosely, revealing a maw full of sharp, broken teeth. Both of the ape's hands are broken, the right shattered so much that it barely resembles a hand. Its right arm is bent backwards, obviously broken, while it supports all of its considerable weight on its right leg. The Great Ape wears heavily damaged battle armor, and stares at Vegeta, its one remaining eye filled with rage...
Raditz is awake, and he is pissed.