Elsewhere

"C'mon Goten, is that all you got?" taunted Trunks.
"Shut up, I'm giving it all I got" said Goten whiningly.
The two young warriors had been sparring for a few weeks straight now, with minimal rest, and Goten was hungry, but Trunks refused to let them go back, they were not going to have a long rest until they had ascended to SSj3, Goten knew this as well, they were both doing this for their fathers, and with his father being gone and all, Goten was trying all the harder.

"Ready to go again Goten?" asked Trunks, "Let's see if you can hit me this time"
"That's it" thought Goten, I'm going to do this, for dad!
And away he went, he took off and flew as fast as he could towards Trunks, motivated by his father, Goten was giving it all he had, fighting above any ability he'd ever fought at before, Trunks was surprised, but at the same time impressed.
Goten had the upperhand, forcing Trunks slowly backwards, kick to the face, knee in the chin, it was a fast and furious assult of vicious attacks, and with that, Goten thought "It's time to end this" and he brought his leg right back, and with all his strength swiped his leg across so it connected with the side of Trunks' head, Trunks was now wearing a look of surprise, and extreme pain on his face, as he fell to the ground he let out a cry of agony, by the time he had hit the ground, he was out cold.

Back at the beds Goten had managed to bring Trunks around, "Are you alright Trunks?" asked Goten worriedly.
"Yeah I'm fine" said Trunks hastily, "But tell me something Goten, have you become a SSj3?"
"No, why?" asked Goten.
"Because when you hit me with that last kick, I felt somehting, it felt as though you had a endless well of power that you were reaching into, I get the feeling that if you harness that, you will be a SSj3 by next week"
"WOW, really" Goten asked excitedly.
"Yeah, let's have something to eat then get back to work, by this time next week, we will both be SSJ3s!"

Back at the Battlefield

Vegeta was being driven back by Frieza, it was like Vegeta was facing a whole new opponent than the Frieza he had faced last time, but then he thought to himself, "If I've improved this much, then why shouldn't he, heh, actually this is turning out to be a rather good fight"
Now Vegeta was evening out the fight, starting to drive Frieza back, lightning fast punches to the body, rocket quick kicks to the head, but Frieza was just as quick, blocking everything thrown at him, and inbetween Vegetas relentless assault, even managing to get a few hits in himself, but Vegeta was also matching those, blocking them also.

"This is simply superb" cried out Cell in glee, look at them go.
"You just wait until you face me Cell, then you won't be laughing"
"Ohhh look at me, I'm trembling in my boots" he replied sarcastically, you may have beaten me last time, but I'm a whole new foe, like you've never seen before"
"Yeah well I've changed myself, I can't wait until I get to subject you to torture, again"
Cell just shrugged this off and turned to watch the fight again.

Frieza finally got a hit in and sent Vegeta flying backwards, but Vegeta soon recovered himself and started rapidly firing ki blasts at Frieza, but Frieza fired them back, a huge ball of energy was forming in between the two fighters, the tips of this huge enrgy ball were touching Frieza and Vegeta, and as soon as they did, it exploded, engulfing the whole battlefield in a bright light.
When the smoke cleared, both Frieza and Vegeta were standing there, looking worse for wear, panting hard, just staring at each other.

"Stupid monkey" said Frieza maliciously, "Little does he know, he can't beat me, I killed him once, AND I'LL DO IT AGAIN!"
Frieza charged at Vegeta, but stopped in his tracks, as Vegeta put both hands out in front of him, and braced himself as he screamed out "FINAL FLASH!"
Frieza put both hands in front of him and caught the blast, he was quickly racing backwards as Vegeta willed the blast on, but Frieza wasn't going to give in easily, he slowed himself down, and with one mighty kick deflected the blast into the sky.

Vegeta looked shocked, making the mistake of letting his guard down, Frieza took this chance and teleported behind him and knocked him into the ground, when the smoke cleared, Vegeta was lying in a small crater, he slowly got to his feet, only to look up in horror at the sky as he saw Frieza with a massive energy ball at his fingertip, it was black and evil, crackling with pink electricity, as he laughed maniacally, Frieza launched the blast at Vegeta, he tryed to ready himself and fend it off, but it was too much, the blast engulfed him and there was a huge explosion.

Smoke had engulfed everything even remotely close to the area, the explosion was huge, unlike anything Gohan had seen before, and he has been in a lot of fights.
Frieza, Cell and Gohan were scoping the blast, searching the smoke, feeling for Vegetas prescence, wondering if he had survived.
Frieza had a long search and then stood up full, with a smile on his face he seemed confident that Vegeta was gone.
"It looks like he couldn't stand up to me again, figures, stupid monkey"
But Gohan knew better, he could faintly feel Vegeta, he was hiding his power, Frieza was doing exactly what he wanted, thinking he was gone.
"GALICK GUN!" screamed Vegeta, as a purple blast emerged from the smoke, surprising Frieza and connecting with him on his turned back.
The smoke cleared from the ground below, revealing a badly weakened Vegeta, he had one arm ripped to shreds from Freizas previous blast, and there was cuts and blood all over him, he was panting from bad energy loss.

"Not bad Vegeta" said Freiza, as the smoke had gone from Vegetas attack, revealing a charred back, raw and burnt, "You actually injured me with that attack, but what surprises me even more is the fact that you survived my ultimate attack, I'm impressed".
"Shut up, let's go, round two" said Vegeta weakly.
"NO VEGETA" screamed out Vegeta urgently, "You can barely stand, you're in no condition to fight".

"Shut up boy" screamed Vegeta back, "You don't know what it's like for me, this tyrant ruled me for my whole life, killed my father, my people, I had to serve him my whole life, his underdog, the Prince of all Saiya-jins, reduced to a mere servant, it was humiliating beyond imagining. Then on Namek, I thought I had done it, become something that not even my father, the King of all Saiya-jins could do, I thought I had become a Super Saiya-jin, but no, it was not meant to be, and he killed me, then it was your father, my rival, my enemy, who avenged our race and not me, it tore me to shreds.
Later I found myself living among you on Earth, with a family, when we were faced with a new challenge, Cell was attacking us, this time I wanted to be the one, I wanted to defend my planet and family, but your father died, and then you, not me killed Cell, surpassed by your father, and then you, once again it tore me.
Then against that Buu monster 10 years ago, I finally admitted it, your father had a talent for fighting far above mine, I knew that he was the best, but not anymore, I have surpassed your father, and this time...I will avenge him, I will kill the nightmare of my past!"
And with that, he flew at Frieza.

RoSaT
"HAAA!" screamed out Goten as he flew towards Trunks, preparing himself to attack while Trunks was bracing himself, ready to defend, an inch before he reached Trunks, Goten phased otu and left an after image for Trunks, it sucked him right in, and he appeared right behind Trunks and gave him a sweeoing kick to the head, then started barraging him with a fast and furious flurry of kicks and punches, doing serious damage to Trunks, Goten eased up on the physical and held back for a while to charge up, then when Trunks turned around he started to give him a volley of ki blasts, Trunks barely had time to ready himself, all the blasts were connecting, and Goten wasn't easing up, smoke started clouding Trunks, then all of a sudden, Goten heard a yell of fury, and the smoke was blasted away by a great energy, there was standing a SSj3 Trunks, Goten just stared in awe, as Trunks held the transformation, but after a few seconds, he slipped out of it and into his base form.
"Wow! Trunks" said Goten happily, "You had that for a while, way longer than any of the times before".
But Trunks just let out a cry of frustration, "What am I doing wrong Goten, tell me, how can you get it, but I can't".
Goten was extremely pleased with himself, not too long ago, he had fully transformed into a SSj3, it had taken so much work, he had worked alot harder for it than SSj2 or ordinary SSj.
"I'm not sure why, maybe you don't have enough motivation?"
"Hmph, let's turn in and try again soon" suggested Trunks.