Goku and Nightmare Moon stared each other off, each waiting to make a move. Nightmare Moon launched forward before landing a blow on the saiyan's face. He did not flinch, but instead turned his head as if the fist was not even there.
"Come on. If you're not gonna put effort into it, at least make things interesting." Goku roundhouse kicked the back of her neck. He then uppercut Nightmare Moon while she was still dazed before dashing behind her one last time before throwing a Ki-laced punch at Nightmare Moon's face. "See? You gotta string in some basic combos before going for the finisher. If I were you, I'd start out small and then work up to the big stuff."
By now, the alicorn was already running out of energy. How could she, Nightmare Moon, the strongest in all of Equestria, be depleted of a large portion of her energy in a few simple blows. She was fighting and loosing to this strange bipedal warrior who was taking this all as a game. She would not let this simple mortal make a fool out of her.
"Enough!" Nightmare Moon ascended upwards before charging her horn with magic. "Your demise shall be swift! Kaioken Times 5!"
The saiyan felt her energy. She was channeling all of her energy into this one blast. He would have to raise his power even further if he wanted to avoid injury."Kaioken Times 3!" Goku's aura flared even more before he cupped his hands, starting a chant. "Ka...! Me...! Ha...! Me..." A blue orb of Ki energy filled the air space between his palms.
"This is the end of you! Nightmare Javelin!" Nightmare Moon launched her dark blue beam towards her opponent the very moment he finished .
"HAAAA!!!!!" Goku threw his hands forward, releasing a blue wave of energy. As the beams collided, they started pushing against each other, struggling for superiority over one another. 'I have to end this quick. Hope this won't hurt her too much!'
"Kaioken Times 4!!!" Goku's Kamehameha enlarged in size, easily overpowering the Nightmare Javelin. But before the wave of Ki could hit its mark, Nightmare Moon left in a puff of purple smoke, flying away from the fight. The Kamehameha blasted straight through the ceiling and into space as the cyan pegasus tried to chase after her.
"Come back here!" she panted. "Nighttime? Forever?" She turned her head to see Twilight carry an unconscious Spike out of the town hall as she frantically darted for the library.
Meanwhile, inside the town hall, Goku was getting much praise for his actions.
"You're amazing!" a unicorn exclaimed.
"What you did was simply stunning." a grey earth mare added.
"See!? I told you this guy was amazing! Did you see that thing he did with his hands!?" While Lyra's enthusiasm was a little funny to the saiyan, it unfortunately caused more problems. If there was one thing Goku didn't like, it was getting praise from everyone for his actions It was only a few minutes of compliments before Goku was getting overwhelmed.
He just didn't like the attention and didn't wasn't to be thought of as superior to people or ponies. 'Gotta find a way out of this... Wait. It's Twilight!' Goku put to fingers to his head and teleported away, leaving everypony in the town hall stunned.
"Hands are... So awesome!!!"
"There are six Elements of Harmony, but only five are known: Kindness, Laughter, Generosity, Honesty and Loyalty. The sixth is a complete mystery. It is said, the last known location of the five elements was in the ancient castle of the royal pony sisters. It is located in what is now--"
Twilight turned her head to the sound of Goku teleporting into the room. He took a few seconds to the scan the library room before setting his eyes on the six ponies in front of him.
The cyan pegasus from before quickly darted up to the saiyan's face. "And you! You're the one that fired all those crazy magic rays and used that Kaio-whatever attack! Who are you and what do you want!?"
"Oh, he's Goku! He's obviously here to help with finding the elements and defeating Nightmare Moon!" Pinkie Pie butted in.
"Actually, that's pretty spot on!" Goku laughed. The girl's mouths hung open in complete shock. everypony except Twilight looked toward the orange earth mare, expecting her input.
"H-He's... T-Telling the truth..." she muttered. This shock only lasted a few seconds before Pinkie Pie hugged Goku's leg.
"See?" She chuckled. "He's totally harmless! Come on! Once you get to know him, he's a really great guy!" With some reluctance, the others walk up to greet him.
"Howdy. I'm Applejack, and this here's Pinkie Pie, Fluttershy, Rarity, Rainbow Dash, and Twilight Sparkle." The girls explained the current situation and that they were heading off towards the dangerous Everfree Forest to recover the Elements of Harmony.
"I see... So, let's go!" Goku was about to fly off when he felt multiple large Ki disturbances. The saiyan quickly ran over to the door with the ponies following suit. "Okay, change of plans! You and the others go to the Everfree Forest!" Goku activated his Kaioken. "I'll handle this."
"Wait a minute-" Before Twilight could put in her input, Goku flew away, surrounded by his crimson aura. She turned to her friends and noticed that they were already heading toward the forest. "Hey! Wait up!"
Goku landed at the center of the town next to the fountain and looked around at the ponies cowering in fear. 'Alright. No peo- er- ponies in danger. But where is that Ki signature. It's gotta be Nightmare Moon. No doubt about that.'
"S-stay back!" Turning his head, the Saiyan eyed a small orange filly with a dark magenta mane. Her eyes filled with fear as Nightmare Moon rose up on her hind hooves. "I'm warning you! Don't come any closer, Or I'll... I'll..."
The alicorn laughed at her flat threats. "Please. Thou would not dare to injury their new ruler!"
"But I'd be glad to!" Nightmare Moon turned around just in time for Goku to roundhouse kick them up into the air. Then, he flew up in the air and punched her away. Next, he flew up over Nightmare Moon and down behind to double kick her further up into the air. Finally, Goku flew up into the air around his opponent and hook kicked her down into the ground. As the alicorn laid on the ground, the saiyan cupped his hands together before launching a Kaioken Kamehameha towards the ground, vaporizing her in seconds. As he descended to greet the filly staring in awe, Goku was tackled down by three more Nightmare Moon clones.
He managed to catch himself and back flipped into a fighting stance. "So. You made clones, huh?" The first did not respond and instead blasted a magic beam towards the orange pegasus.
Goku used his speed to quickly get in front of the blast and knock it away with a simple swipe of his hand. Goku extended his palm and fired a yellow Ki blast of his own. "Try everything you'd like," He then smashed his elbow into the second Nightmare Moon clone's chest. "Cloning, mimicry..." He jumped up and preformed several rapid kicks before one last one sent her flying into the third clone. "But you can't beat me!"
The Nightmare Moon clones ascended to the skies, scowling at the lone warrior. "This is where it all ends!" they shouted in unison. Magic charged in their horns as they poured all they had into the blast. They would not let this strange creature overpower her. Meanwhile, Goku had summoned the Kaioken X4 to power up his Kamehameha. "Say, goodbye, you insignificant fool!" Before they could launch their last desperate blast, a grand piano dropped down from the sky and crushed the three clones. Once they hit the ground, they disappeared in a puff of smoke. Goku dropped his guard and stopped his Kaioken Kamehameha.
"Sorry! My bad!" Goku and the young filly looked up to see a grey cross eyed pegasus looking down on the stunned duo. "I just don't know what went wrong." Beside the pegasus was a movers' truck; indicating that she was helping someone unload their items out of the truck.
"Hey!" Goku called, grabbing the attention of the grey mare. "Thanks for the help! Really appreciate it- uh..."
"Derpy Hooves!" She descended next to the saiyan.
"Right. You just saved me and a lot of others!" He shook her hoof before turning around to face the orange filly staring in awe. "You okay, kid?"
"No I'm not... I'm great! That was awesome! You took those three on like it was nothing! How did you do it?"
"Whoa, whoa. Slow down. I'd love to stay and chat but I gotta head out real soon. Before I go, can I at least get your name?" Goku replied.
"I'm Scootaloo!"
"Son Goku, but you can just call me Goku!" Suddenly, a dark purple explosion of smoke emitted from the direction of the forest. "Um... I gotta go. See ya!" he gave a two finger solute before putting those two figures on his forehead. With some concentration, the saiyan vanished into thin air.
Inside the Castle of the Two Sisters, Twilight and her new friends had found the Elements of Harmony and had attempted to harness their power. However, before she could, Nightmare Moon teleported her and the Elements into another part of the castle. The dark alicorn then stomped the ground, shattering the artifacts into tiny shards.
Twilight was crushed. After everything she's been through, she failed Equestria. She failed the new friends she had made.
And she had failed Celestia.
However, Twilight realized that the spirits of the Elements are present, and she explained how her friends represented the Elements of honesty, kindness, laughter, generosity, and loyalty. The fragments of the orbs began to circle the friends.
A final stone orb then magically appeared over Twilight, and she declared: "You see, Nightmare Moon, when those Elements are ignited by the... the spark, that resides in the heart of us all, it creates the sixth element: the element of... magic!"
The shards of the orbs combined into a bright light on each respective pony's neck. Finally, a golden crown appeared on Twilight's head as a rainbow-colored double helix blasted out of the six ponies as it rocketed towards the tyrant. However, as high above the building, the full moon's light shimmered down on the alicorn.
A dark purple aura shielded Nightmare Moon, completely nullifying the attack. When the light faded, the Mane 6 were now wearing necklaces with heir cutie marks on them; minus Twilight who had a crown.
They gasped in horror as Nightmare Moon stood perfectly unharmed, now flying over the group. "What a futile attempt at imprisoning me once more, but alas, it was only an attempt. Now say goodb-"
(Cue Dragon Ball Z Budokai 2 OST- Hand in Hand Fight)
Goku materialized into thin air as he launched a small yellow Ki blast at the tyrant. The alicorn blocked it before striking the Saiyan back down to the ground. He back flipped before he landed in front of Mane 6 as Nightmare Moon descended to his level.
"Oh boy! This is gonna be fun!"
"You're insane!" Twilight exclaimed while the others, including Nightmare Moon, thought the same thing. Goku's feet left the ground as he quickly flew towards Nightmare Moon before giving her a punch away from the others. As she recovered, the alicorn quickly dodged the flurry of punches and kicks sent in by her opponent.
He then Instant Transmissioned behind her before roundhouse kicking her in the back. He then activated his Kaioken X3 before tackling her down into the ground once more. She recovered as Goku ran around the room before jumping off one of the walls. Nightmare Moon used her wings to dash up to him and deliver a swift punch to the face. She then proceeded to circle around him to deliver a large flurry of blows to the dazed Goku before his final strike sends him into a wall , paralyzed. This also deactivated his Kaioken.
(End Dragon Ball Z Budokai 2 OST- Hand in Hand Fight)
Nightmare Moon laughed maliciously, knowing that her opponent wouldn't be going anywhere soon.
"Wha... what? I... I can't move..." the saiyan struggled to open his eyes. "What did you do to me?!"
"Ancient magic pressure points." Nightmare Moon retorted. "A technique that nopony can overcome by themselves. Only the one that inflicts the pain can reverse it. Since we are feeling in a good mood, I will create a deal with you. Become my loyal servant, and you shall continue walking among the living."
"N-never! There is no way I'd ever join you!" Goku shouted.
"Leave him alone!" Twilight threw her body at Nightmare Moon, trying to save Goku. However, the alicorn grabbed the unicorn with her magic and smashed her straight into a wall. Her friends ran over to help as the princess turned back to her first victim.
"Now then..." Before she could blast Goku into oblivion, her eyes shrunk as she lashed out in pain. Her pupils grew and shrunk as Nightmare Moon struggled to keep herself under control. It was as if something was holding her back from preforming the dastardly deed.
"No! You... will not... KILL HIM!" she shouted in a slightly distorted voice.
While she was still distracted, Goku used telekinesis to levitate a small brown bag in front of him before pulling out a Senzu Bean.
"Wait, what is that!?" Nightmare Moon asked, now back under control. As the warrior ate the bean whole, he floated away from the wall, now perfectly unharmed.
"Ah... Senzu Bean! Want one?" he asked in a cheerful tone. This caught Twilight and the others off guard. This creature was offering his opponent a means of heal herself, even though he threatened to kill him just seconds ago.
"Keep your filthy beans to yourself. It does not matter how many times you heal. You will never defeat me. I have achieved a power greater than the Kaioken! The blows you gave are only making me stronger! Now, I have strength that is not comprehensible to anyone, not even you!"
Nightmare Moon then dawned a dark aura, shouting as the energy flowed through her body. The energy died down with the aura now almost completely transparent.
(Cue Dragon Ball Z Ultimate Battle 22 Son Goku's Theme)
As Goku tightened his wristbands, he smirked at the tyrant. "Don't get ahead of yourself, buddy. You're not the only one, with that kind of power!" Goku clenched his fists and screamed as a golden aura surrounded his body He let out one final shout as the transformation finished.
His black hair now majestically lifted upwards with a golden glow. Along with this, his eyes changed from black to blue-green. He darted forward in the blink of an eye, stringing together a combo of rapid blows. He finally kicked the alicorn away before she recovered.
"Alright, blondie! What's going on?!" Nightmare Moon was answered as Goku launched forward, intent on striking his opponent.
She put her hooves up in defense, but Goku preformed Instant Transmission behind her, however he was facing away from her. Nightmare Moon turned around and launched a hoof at his chest, but Goku did the same, only faster. "I am Son Goku! And I..." The warrior uppercutted her before spiraling upward to where she would be in mere seconds. "Am a Super Saiyan!"
He let his aura flare upwards before Sledgehammer Fisting her back into the ground. Goku cupped his hands, preparing his signature attack. "Ka-Me-Ha-Me-... -HA!!!" His blue Ki blast caused the alicorn to fly back up into the air to dodge the blast. 'Now's my chance!' Goku grabbed her and pushed her back into a wall.
"Let me go, you monster!" Nightmare Moon shouted, trying to pry the saiyan's hands off of her.
"No! You have to let go of my friend!" Nightmare Moon's pupils grew once more as she started struggling less. "I know you're in there somewhere, Luna! You have to fight it!" A distorted voice came from the pony. "Go! I... can not hold her... for much longer." Goku now had confirmation that Luna was still in there.
"Hiya!" The saiyan drove his fist into the alicorn's abdomen, breaking her aura into pieces.
"GIrls... Use the Elements... Now!!!" The Mane 6 then floated once more, surrounded by a white light. Another double rainbow helix blasted out of the group as Goku jumped out of the way with mere seconds to spare.
"What?! Nooo! Nooo!" The rainbow transformed into a tornado, enveloping Nightmare Moon in seconds. The room was then flooded with light.
(End Dragon Ball Z Ultimate Battle 22 Son Goku's Theme)
As it died down, the girls were now sprawled on the floor, due to the Elements taking a lot out of them. When they got back up, the first thing they saw was Goku still in his Super Saiyan state. His aura died down into nothingness, as his expressions lightened into a smile.
"Great job, girls. You did a good thing." he was bombarded with hugs from the others as Twilight and Applejack watched the scene unfold.
Now that Rarity could see him clearly, she stared intently at the golden hair, saying that it was "The most gorgeous and bold fashion statement she had ever seen." As Pinkie Pie and Fluttershy continued their embrace with the saiyan, Rainbow Dash was fan-girling over the battle.
Meanwhile, Applejack chuckled at the display.
"Gee, Twilight! I thought you were just spoutin' a lot of hooey, but I reckon we really do represent the elements of friendship."
"Indeed you do." The ponies and Goku turned their attention to the Sun rising over the horizon once more. A bright light shined down from the Sun as Celestia materialized from the beam of sunlight. As the ponies bowed, Twilight rushed up to her mentor as they embraced in a small nuzzle.
"Twilight Sparkle, my faithful student. I knew you could do it." the Sun princess said.
Twilight Sparkle looked up in confusion. "But... you told me it was all an old pony tale."
Princess Celestia chuckled. "I told you that you needed to make some friends, nothing more. I saw the signs of Nightmare Moon's return and I knew it was you who had the magic inside to defeat her, but you could not unleash it until you let true friendship into your heart. Now if only another will as well. Princess Luna!"
They all turned to where Nightmare Moon once was and in her place was another pony.
As Princess Celestia confronted towards her, Luna gasped. "It has been a thousand years since I have seen you like this. Time to put our differences behind us. We were meant to rule together, little sister."
"Sister?" Twilight Sparkle and Rainbow Dash asked in a baffled tone.
"Will you accept my friendship?" Princess Celestia asked.
Princess Luna hesitated, but soon hugged her older sister. "I'm so sorry! I missed you so much, big sister!"
"I've missed you, too. Princess Celestia shed tears of joy.
Pinkie Pie blew her nose and sobbed uncontrollably before suddenly becoming happy. "Hey, you know what this calls for?"
"A party!" Ponyville was now bustling with residents as Pinkie threw a party to celebrate the royal sisters' reunion.
While Goku chowed down on bowls of noodles and cupcakes, his attention was soon put on Luna. She walked over to the Saiyan before sitting down next to him.
"Son Goku, there is something I must ask of you." she said.
"Yeah, go ahead."
"When you were fighting me as Nightmare Moon, how did you know I still resided in said body."
Goku put a hand to his chin before replying. "I wasn't really sure. I'm not one to kill my opponents. I like to show them mercy in case there is some good in them. You also hesitated when I was paralyzed. It was like something was holding you from killing me."
Luna smiled. "It seems there is more to you than meets the eye, Son Goku."
As ponies celebrated, Princess Celestia noticed that Twilight wasn't celebrating like the others. "Why so glum, my faithful student? Are you not happy that your quest is complete and you can return to your studies in Canterlot?"
Twilight Sparkle nodded solemnly. "That's just it. Just when I learned how wonderful it is to have friends, I have to leave them." Twilight's new friends looked at her in sadness.
Princess Celestia saw the disappointment in their eyes and thought of something. "Spike, take a note, please. I, Princess Celestia, hereby decree that the unicorn Twilight Sparkle shall take on a new mission for Equestria. She must continue to study the magic of friendship. She must report to me her findings from her new home in Ponyville."
Twilight now beamed with happiness. "Oh thank you, Princess Celestia! I'll study harder than ever before." As the ponies cheered, Celestia walked over to Goku, who was with Luna.
"I thank you, Son Goku. Without your help, I could have never been reunited with my sister. Are you ready to return to your world?"
"Hmm... I'll pass on that for now. I just got here yesterday and I wanna go off on new adventures!"
Celestia nodded. "If that is what you wish. I shall not stop you but I do have one more request, Son Goku."
"Sure, and by the way, just Goku will be fine."
"Goku, I would like you to stay in Ponyville with Twilight to make sure she doesn't get into too much trouble." The Sun princess winked at the saiyan as he gave a thumbs up.
With that, the party continued; everypony partying like there was no tomorrow. What new adventures will Goku and the others encounter? That will have to be a story for another time.