Kaio-ken, Off the Charts!

"Hmph, say what you will." Vegeta's eyes were sharp, his face carrying the smug satisfaction of getting what he wanted. "Don't you have one more move? Go ahead and try it—I'll still beat you."

Having fought a great battle, he felt his strength had grown, and the prince's pride surfaced once more.

"Using it like that would be a waste." Raditz shook his head, then suddenly pulled out a Scouter and tossed it to Vegeta.

"What's this supposed to mean?" Vegeta caught the Scouter, frowning.

You don't even get this? I'm about to show off! Raditz sighed in disappointment and shot Vegeta a helpless look.

He pointed at the Scouter, signaling Vegeta to put it on.

Luckily, Vegeta played along, putting it on with skepticism—otherwise, Raditz would have had to shove it on him himself.

"Old-model Scouters have too low a measurement ceiling. I had Earth's scientists modify the precision and upper limit. Now this Scouter can measure up to a Battle Power of fifty thousand."

"Hahahaha, you're not telling me you've hit fifty thousand, are you? Raditz, since when did you develop a sense of humor?" Vegeta mocked mercilessly, refusing to believe Raditz's Battle Power could be that high.

Fifty thousand—wouldn't that mean he'd have crushed him long ago?

"I don't have fifty thousand myself, but I'll still shock you." Raditz tensed his body again, muscles bulging, veins popping. His long hair swayed behind him, tips lifting slightly, shrouded in a flickering red aura.

His ki surged rapidly. The clouds scattered, revealing the sky once more, the air nearly still.

"Here it comes—Kaio-ken!" Piccolo and Goku whispered simultaneously.

The others wanted to speak but felt something stuck in their throats, unable to utter a word, yet their inner shock was impossible to hide. Their hands trembled involuntarily—fear born from the heart!

At Bulma's house, dense cables snaked from one room to another. Three high-end precision instruments were neatly arranged on a table, connected to the main computer screen.

These instruments were the best on Earth. As a genius scientist from Capsule Corp, Bulma's scientific talent was undeniable. She was now using this equipment to receive data from the Saiyan Scouter—data from thousands of miles away appearing on the screen with only a few milliseconds of delay.

Raditz wanted to monitor the Scouter's performance, and Bulma wanted to study this cross-universe communication technology, so they had cooperated.

At this moment, Bulma stood frozen in front of the screen.

She saw a number jumping rapidly on the display, skyrocketing from twenty thousand to thirty thousand, then to forty thousand. The equipment hummed efficiently, the flashing dots pulsing at an astonishing speed. The whole machine buzzed, fans whirring to cool it down.

"I measured Master Roshi's Battle Power at 139. Who is this? Is it Goku or Raditz?" Bulma's face went pale with fear. Though she didn't understand what the specific numbers meant, she could see how massive forty thousand was!

Far beyond the original Scouter's limit—meaning a Battle Power of forty thousand was no ordinary feat. After all, this Scouter was designed for use across the universe!

Far away at Turtle House, Master Roshi was equally shocked. He sensed two massive ki clashing fiercely, one of them still rising to a level he couldn't fathom—it was Raditz's ki!

"Beep-beep-beep—" "Beep-beep-beep—" The Scouter kept refreshing its upper limit, the number finally settling at 41,100!

A Battle Power of over forty thousand!

Vegeta's pupils went vacant, his gaze hollow and blank. His mind was filled with nothing but a warm, dizzying haze.

The overwhelming pressure bearing down on him couldn't lie. Raditz's red aura exploded through the air like miniature thunderclaps. His muscles seemed packed with power, the released energy so shocking it made hearts clench, unable to relax. The ensuing storm blew in waves, even sending a rampaging dinosaur flying, wild to the extreme.

"No, impossible..." Vegeta shook his head in disbelief, trembling inexplicably.

His earlier words now felt like a joke. His face burned with shame, as if he'd been slapped hard.

He kept muttering "impossible" under his breath, his mentality shattered on the spot.

"Vegeta, if you want to fight, we can continue. But I still ask you to seriously consider my proposal. Join forces with us to take on Frieza!"

"You... don't think you can get cocky! I'm the strongest Saiyan in the universe!"

Raditz was speechless. Still hung up on who's stronger? Isn't it obvious? A prince's pride was sometimes a real pain.

But Vegeta's power was crucial—Raditz didn't want to give up.

Looks like I'll have to beat him up! Yeah, that's the plan!

Having made up his mind, Raditz moved. He pressed his palms together at the base, fingers curling, and pulled them from his front to his waist.

The starting stance of the Kamehameha!

During his training with Goku, he had specifically asked about the Kamehameha's technique. Though the principle was simple, comparing it to other moves revealed its uniqueness.

On the surface, it was just a ki blast releasing massive energy, but the way ki flowed was fundamentally different. That created the core differences between each person's signature move.

The Kamehameha wasn't the most powerful, but it had the best balance and a follow-up burst. No wonder it was Earth's most popular finishing move!

"With this one move, let's settle it!"

"Try my Galick Gun!" Vegeta refused to admit defeat, gathering ki in his hands, concentrating his Battle Power.

He was fighting with his back to the wall, with no retreat.

His original plan for the Earth trip was simple: kill some trash, eat good food, find the Dragon Balls to make a wish, then leave in triumph.

Who could have imagined it would turn out like this?

All his resentment and fury merged into this earth-shattering strike, determined to blast Raditz to dust!

Galick Gun, fire!

At the same time, the Kamehameha pushed forward. The red aura of Kaio-ken dyed the blast crimson, light shooting out.

A massive storm swept across, surging for miles, forcing Gohan and the others to shield their eyes with their hands, relying only on ki to judge the situation.

Far away, Bulma's machines roared as they worked, pushed to their limits by prolonged operation. The fans' cooling couldn't keep up with the heat.

"Bang!"

The equipment exploded, belching smoke...

My understanding of Kaio-ken is that it starts at double and maxes out at the point the body can't handle it. I've seen online claims of a 1.5x original Kaio-ken, which feels odd and not very credible. Also, one image suggests the fight against Nappa used 2x, so the multiplier starts at ×2. That might mean Kaio-ken equals double Kaio-ken, or Kaio-ken just raises the upper limit of various stats.

Also, personally, I think the multiplier refers to the boost to Kaio-ken itself, not directly applied to Battle Power.