Goku looked at his son. "Gohan, I have to tell you something. It's really important, so you had better listen."

"Yeah, Dad?"

"There's a chance that I won't make it. If I die today, I need you to take care of your mother," explained the Saiyan. "I can't be revived by the Dragon Balls anymore, so this time will probably be for good. Do you promise to watch over her in case that happens?"

Tears started pouring down Gohan's face. "Dad! You can't die!" he shouted emotionally, his energy increasing slightly.

"He said 'if,'" I reassured the young half-Saiyan. "He isn't saying that it's a guarantee."

Goku smiled gratefully. "Thanks, Frui." I nodded in response.

"Are you weaklings done over there?" called Cell. "Is somebody coming out or not? If my impatience grows too thin, I'll just destroy this wretched rock!"

Goku immediately used Instant Transmission to get to Cell. "It's my turn." Then, he quickly powered up to his full power, his powerful aura creating a small crater in the ground.

"How could Goku get so powerful?!" Piccolo gasped, not quite sure of what was happening anymore. Everybody else was either too amazed or didn't care enough to respond.

"Oh, how I have waited so long to fight you, Goku," boasted the bugman. "My purpose for existing was originally to kill you, after all. Doctor's orders."

"I'm pretty excited myself," stated the Super Saiyan. "But the fact that you killed Trunks and almost Vegeta can't be overlooked. You're going to die today."

"Is that so?" Cell remarked. "You don't have the power to challenge a being such as myself!"

"We'll see."

Immediately, they flew away from each other. Once they were about 50 feet (15.25 meters) away from each other, they turned and faced their adversary.

"You and I are alike, Goku," Cell started saying. "We both love fighting, no matter what reasons we have."

"That's not the only thing," the Saiyan said while getting into his traditional Turtle fighting stance.

"True."

Suddenly, they both blasted off of the ground at each other, and when they made contact, they immediately started kicking and punching and blocking. Each powerful blow shook the ground for many miles (many kilometers) around, registering on seismographs around the globe as a powerful earthquake (8.7 on the Richter Scale).

"Man, I can't even see them anymore!" Yamcha complained and complimented simultaneously.

"Really? I can see them, if only barely," Krillin replied. Yamcha shut up after that.

Goku and Cell kept kicking and punching and blocking constantly, neither fighter getting the advantage over the other, for what felt like forever. Something Goku did really changed that.

After 3 minutes of nothing but repetitive physical fighting that you probably don't need to hear about because nobody got hurt, both fighters finally landed on a small hill, about 12 feet (3 meters) from each other.

"You sure are powerful, Goku," remarked the unwearied Cell. "It's too bad you're just not making the cut. You can thank Trunks for that."

Goku took a few seconds to relax. "This is...really...invigorating," he managed to say between heavy breaths.

"Oh, and how is that?" the Android asked. "It seems quite ironic to me."

"Well, it's really not that hard to explain," he laughed, having caught his breath quickly. "I just love the thrill of a good fight."

"We're similar in that aspect, Goku, but not as similar as you'd like!" Tired of waiting for Goku to make the next move, Cell burst into action and punched Goku halfway across the crater with enough force to destroy Mars. Goku's gut thankfully absorbed the impact, but at the cost of most of his energy and his breath.

"Gah!" cried the Saiyan when the fist made contact with his stomach. It was clear that he wasn't going to survive if he didn't give up soon; he was outmatched by Cell's immense power.

The monster then flew over to Goku. "I'm tired of not having a challenge," Cell declared. "For your own good, you should just stay down for thirty seconds."

"Nngh..." the Super Saiyan groaned. "I'll...never...give up...you monster! AAAHHHHHH!" Suddenly, Goku's golden aura burst outward from his body, surprising Cell. Apparently, he wasn't finished just yet.

"I will…defeat you!" Goku shouted while his muscles expanded rapidly. The wind kicked up by his aura was so powerful that even though I transformed and put up an energy barrier to protect everybody, it still flexed immensely until Gohan helped me out.

"Oh, so you're using that same technique that Vegeta and Trunks used," the bio-android pointed out. "By all means, do whatever makes you feel more prepared to die."

However, Goku just kept powering up more and more, his continuous cry echoing across the rocky area. Soon, though, he stopped getting buffer and got into a fighting stance.

"If you thought I'd go down that easily," the Saiyan proclaimed, "then you definitely don't have my cells."

"Hmph" was the only reply that the Ultra Super Saiyan received before he unleashed his full fury.

Getting into a perfectly recognizable stance, Goku shouted two short words: "Kame...Hame...!"

Upon realizing what Goku was about to attempt, Cell backed away and got into a similar stance. "IMMA FIRIN' MAH LAYZOR!"

Simultaneously, both fighters thrust their open palms forward, their voices accompanying two separate explosions from opposite ends of the battlefield: "HAAAAAAAAAAA!" Cell also had an energy beam coming out of his mouth for a few seconds, but he deemed the mouth laser unnecessary and discontinued it, instead relying solely on his own Kamehameha Wave.

The two energy beams collided with an incredible display of white light and inaudible-to-human-ears sound, forcing Piccolo to cover his ears. Even Cell himself looked like he was disturbed by the extremely high-pitched noise, but not enough to let up on his energy attack.

Both fighters kept their energy flowing, but quickly, it became obvious that Goku was running out of energy in his reserves; Cell's attack gained the advantage, despite the fact that their attacks had been equal in the beginning.

"I didn't realize you were so weak, Goku," mocked Cell. "Gero was wrong about you. A Perfect being such as myself is parsecs beyond your league."

"I...give up..." blurted the Super Saiyan suddenly.

"WHAT?!" exclaimed every single Z Fighter simultaneously.

Cell lessened the power of his attack to equal Goku's at that moment. "This is an interesting turnout."

"I…wasn't done…speaking," Goku said. "I give up...only when I have no choice! HAAAAAA!" All of a sudden, Goku's Kamehameha Wave blasted with more energy than what Cell was using and overcame the bio-android within seconds. Clearly, Goku had been bluffing to distract his opponent.

When the smoke cleared, Cell's entire upper body was destroyed, but his legs still stood there, preparing to regenerate.

"I...tried..." mumbled Goku before he collapsed and reverted to his base form.

Hey, guys! I really hope you enjoyed this chapter. Personally, this is my favorite chapter so far, even more so than when Gohan and Frui trained together.

Goku's more extensive use of USSJ is due to how he trained in the HTC; because he trained with Frui, another fighter who knows the benefits and drawbacks of USSJ, he got used to using the buffer forms more than in canon, as Frui used them whereas Gohan never did. That led to Goku using USSJ to his advantage just now.

On a side note, there's a little bit of foreshadowing for the next arc. If you believe you found it, feel free to leave your find in the form of a review. I'll be surprised if anyone gets it right before that next arc actually begins.

Power Levels:
FP SSJ Goku: 48,000,000,000
Super Perfect Cell (suppressed): 51,084,000,000
USSJ Goku: 120,000,000,000
USSJ Goku's Kamehameha Wave: 150,000,000,000
Super Perfect Cell's Kamehameha Wave: 153,252,000,000
USSJ Goku's Kamehameha Wave (faking getting weaker): 135,000,000,000