7:00 AM - Downtown, Beverly Hills - Los Angeles

Y/n & S/n's Family decided to pay the siblings a visit as a sign of apology for their discouragement. They've just booked a hotel between Beverly Hills and Downtown. They're having an early breakfast in the hotel's dining room.

Mama L/n: "Now, Honey, I hope you apologize to your son."

Papa L/n: "I know. I know. Even though he's not blood related, he deserves some love and respect."

Mama L/n: "Exactly."

Suddenly, the hotel started to earthquake as the family watched alertly. Outside, Jerry and his operatives of W.O.O.H.P. were investigating the girls' disappearance in.

Jerry: "Are all the citizens in this district evacuated?"

W.O.O.H.P. Spy Operative: "All but one, sir. There's a demolition foreman who's been here since this morning."

Then, Jerry felt an earthquake underneath. The Warp Pipe in the underground sewer shoots Y/n out of a manhole and Y/n crash-lands onto the ground before getting up.

Jerry: *Notices Y/n* "Young man! Are you all right?"

Y/n: *Groaned* "Yeah, I'm fine."

Y/n looks around and realizes he's back in Beverly Hills!

Y/n: "Beverly Hills...?"

Suddenly, Y/n heard a screaming and of the same manhole, S/n crash-landed onto her brother!

S/n: "....Damn...." *Sees her brother broke her fall* "Oops! Sorry bro!"

Y/n: "No prob, sis. Glad I cushioned your fall."

Jerry: "Where did you two come from?"

Before the siblings could answer, Foreman Spike's truck pulled up and almost hit them but slammed the brakes in time.

Spike: "Y/n? S/n?" *Grabs Y/n by the shirt* "You almost dented my van!"

S/n: "As much as I want to kick your ass, Spike, now is not the time!"

Spike: "And why?"

Right on cue, Bowser's Castle emerges from the pipe, as do several Mushroom Kingdom debris.

Y/n: "THAT'S WHY!! RUN!!!"

Y/n, S/n, Spike, Jerry and the W.O.O.H.P. operatives ran for safety. Peach, Toad, and Donkey Kong get trapped under debris while Alex, Sam, Clover & Britney frantically take cover behind an alley and a dumpster. It was very fortunate that Jerry evacuated the whole Downtown of Beverly Hills. The Super Star is launched from Bowser's Castle and lands a short distance in front of Y/n & S/n.

There was worse to come, the Koopa King was free from the ice but he got up furiously.

Bowser: "Y/N!!!!!"

Y/n & S/n raced for the Super Star but Bowser jumped and blocked them.

Bowser: "You want this?!"

Bowser brutally grabs Y/n by the arm and holds him up as he exclaims fearfully. 

Y/n: *Nervously* ".... Nice eyes...." *Laughs sheepishly and gulps*

Bowser snarls furiously and gives Y/n massive sucker punch, sending him flying backwards into S/n as she catches him and into a car's windshield. Y/n coughed some blood as they dodged Bowser's flame breath in time! Meanwhile, the furious Koopa King was attempting to kill the siblings!

Bowser: "You RUINED my wedding! I was FINALLY gonna be happy! Now you will suffer, LIKE ME!!!"

S/n: "You think marrying Peach is going to make you feel happy?!"

Bowser: *Tried to smash S/n but failed* "Marrying her WILL fix everything!"

Y/n: "NO, IT WON'T!! It's not true love when forcing someone like her to marry you if she really doesn't like you back! She deserves to be someone much more caring for her and others and someone who protects her and loves her with all their heart! In fact... She deserves someone like me! And after what've you done to her kingdom and my friends... YOU SHOULD BE ASHAMED OF YOURSELF!!!"

Unknown to Y/n, Peach heard the whole thing what Y/n said as her face turned and blushed of what true love really means.

Bowser: *Snarled furiously* "ROOOOOOAAARRR!!!!"

The furious Koopa snapped as he whacked the siblings with tail's might into a local diner and smashed the diner's TV. Y/n & S/n were beaten up badly as S/n tried to protect his brother from the monster.

Bowser: "You really thought you could stop me? You worthless, weak little nothings? COME OUT AND FIGHT! Or are you too scared?"

Y/n said nothing as he groaned in pain but S/n gave Bowser only a middle finger.

Bowser: *Cackles* "Just what I thought."

Princess Peach rushes over, jumps into the air in a spinning kick at Bowser, who grunts. Then Donkey Kong body slams into Bowser with a punch, knocking Bowser over. This angered Bowser even more. With an enraged bellow, he turns his attention to his attackers and fights back. He knocks Princess Peach, DK and Toad off with his arm, then he roars at them before charging at them.

Bowser: *ROARS!!!*

Meanwhile, Y/n & S/n are on the brink of losing hope after being pummeled by Bowser. Y/n sighed in despondence while he continues bleeding and shed tears in pain while S/n tried to comfort him slowing his bleeding. Just then, the TV flickers on, showing the commercial from the beginning.

Y/n & S/n: *Commercial audio* "MAMMA MIA!!!"

Y/n: *Commercial audio* "That's-a why the Sup-Super Y/n Brothers are here. To-a save Beverly Hills-- Save Beverly Hills-- Beverly-- Save Beverly Hills--"

After the TV shuts off completely, Y/n's face changes to determination, realizing that it's up to him and S/n to save Beverly Hills. S/n join in too and help him out of hiding as Y/n stretches his right arm and adjusts his hat.

S/n: *Stretches her arms* "Ready, bro?"

Y/n: "Ready." *Quietly* "Let's-a-go."

The siblings got outside just as Bowser was overpowering Donkey Kong. Bowser punches the ape, grabs him by the throat and lifts him up. He lashes his claws out, preparing to finish him off. But..

Y/n: "Oi!! Leave DK and Peach alone, you fire-breathing bastard!"

S/n: "What he said, you big black-hearted bitch!!"

Alex, Sam, Clover & Britney: *Sees Y/n & S/n* "Y/n..."

Bowser: *Releasing DK* "You just don't know when to quit!"

Y/n: *Groans in pain but smiles* "Yeah. I've been told that before. Because I refuse to give up!"

S/n: "You know what we say, Bowser: when you're with the Super Y/n Brothers, you're family."

Y/n: "Plus, nothing beats a man with determination."

Peach smiles, remembering that same conversation she and Y/n had after the latter defeated Donkey Kong. Just then, she sees Kamek with the Super Star and gets an idea.

Peach: "Y/n! S/n!"

Peach respectively shoves and pushes two Koopa Troopas to the ground and kicks a Green Shell over to the Super Star, sending it flying!

Peach: "The star! Grab it!!

Bowser: "NO! THAT'S MINE!!"

The siblings were running towards the Super Star but Bowser fired his flamebreath towards them! Y/n & S/n closed their eyes but something blocked them from being scorched. They saw Alex, Sam, Clover & Britney altogether blocking the fire with a manhole cover.

Y/n & S/n: *Surprised* "Girls..."

Sam: "Nothing can hurt us as long as we're together."

Alex: "You saved our lives, Y/n."

Clover: "And we're gonna help you return the favor!"

Britney: "By bashing that creep to teach him a lesson!"

Y/n & S/n smiled for the girls because they're not scared of Bowser anymore. Rather more brave than afraid. As the manhole starts to bend, Y/n reaches a hand to the girls, who take it as the two leap towards the Star, just when it looks like Bowser's Fire Breath hits them.

Peach: *Horrified* "NO!!!"

Bowser: *Cackles* "YES!!!"

Bowser walked closely over to get the Super Star, finally winning as he can finally marry Peach... Or so he thought.

https://youtu.be/_NWrPp8QxZI

Music Insert: Superstars (Composed by Brian Tyler)

Y/n: "Nice try, Koopa."

Y/n, S/n, Alex, Sam, Britney and Clover were still alive as the power of the Super Star granted them Invincibility Powers! Their bodies glow intense rainbow colors as Bowser was shocked! He tried to stomp them but to no avail!

Bowser: "WHAT!?"

The heroes smirked as they sent Bowser back with a powerful uppercut! The Koopa King was now REALLY furious!

Bowser: "RIP THEM TO PIECES!!!"

Y/n: Ready, girls?"

S/n and the spies: "Ready!!"

Y/n: "CHARGE IT!!!"

The Goombas, Koopas, Spinies, Shy Guys, Hammer Bros, Sledge Bros, Goombas, Buzzy Beetles, Koopa Paratroopas and Piranha Plants follow Bowser's orders and rush towards the Y/n Bros and Spies. Invincible Y/n, Invincible S/n and the Invincible Spies nod at each other and split up. A Sledge Bro tries to hit Invincible Y/n but the hammer gets destroyed and Invincible Y/n throws the Sledge Bro at the Koopas, while Donkey Kong jumps with Peach and Toad in his arms. A Shy Guy is jumping on a whimpering Spike as the Dry Bones, Snifit and Hammer Bro watch. Invincible S/n defeats Dry Bones, uses its shell as a shield to block Hammer Bro's hammers and defeats both the Hammer Bro and Snifit. Invincible S/n grabs on a Shy Guy's strap, before letting it go, sending the Shy Guy flying.

S/n: "Sup, Spike?"

Spike: "S/n...?"

The Invincible heroes run side by side and zoom into the Koopa Army, defeating them, the Spinies, Hammer Bros, Piranha Plant, Shy Guys, Buzzy Beetles and Goombas. Invincible Y/n and Invincible S/n jump on the Bullet Bills and Paratroopas, defeating them. From a hotel, Y/n & S/n parents are awed by their Invincible children until a Piranha Plant traps them both with its jaws, much to the parents' horror...

Papa L/n: "No!!"

Unfortunately for the Piranha Plant, The Invincible Y/n Bros. broke free from the Piranha Plant as their parents are more awed than ever.

Papa L/n: "Mamma Mia!"

The Invincible Spies were now fighting Bowser, part of payback for locking them up in his dungeons. Bowser throws a car at them, once again to no avail, as Invincible Y/n and Invincible S/n grab a power line like a trapeze and kick him. Bowser tries to crush them, but Invincible Alex slides underneath him and throws him on the ground. Invincible Sam headbutts Bowser and uses a mushroom as a trampoline. Invincible Clover uppercuts and bicycle-kicks Bowser as Invincible Britney throws a block at him, causing the Koopa King to collapse. Bowser was no match for the Superstars of Beverly Hills. Altogether they grab Bowser by his tail, spin him around, and toss him up in the air. Invincible S/n, Invincible Alex, Invincible Sam, Invincible Clover and Invincible Britney jump up high and punch Bowser, sending him to the ground, causing a giant crack on his castle. Invincible Y/n saved his surprise for last! He uppercuts Bowser, sending him into the air while throwing multiple punches and kick combos, with a rising triple spin kick at the end and finishes with a strong impulsive chop that launches Bowser downwards back to his castle again. The Superstars finish off the battle with the front-flip and prepare the finishing double-curb stomp. Bowser attempts to scorch them to death but the Invincible Y/n Bros and the Invincible Spies break through the fire breath and strike Bowser, destroying his castle in the process. 

The others shielded their eyes from explosion as the Super Star effects wore off the Y/n Brothers and the spies. As Y/n, S/n, Alex, Clover, Britney and Sam returned back to normal, they loomed over Bowser who had bruises, punch marks, scrapes, scratches, and even a black eye from Y/n.

A/n: "Pretend Bowser is all bruised up."

Y/n: "Man... What a helluva rush."

S/n: "I'll say..."

They turned to see Peach, DK and Toad climb on the pile rubble to see the defeated Bowser, who can barely move. Peach had a Mini-Mushroom in her hand when Bowser woke up and was startled to see Y/n.

Y/n: "Proud of yourself now, Koopa?"

Bowser: "No... no I'm not." *Groans in pain*

S/n: "Mess with our friends again and my lil' bro and I give more cans of whoop-ass!"

Y/n: "Yeah! And it serves you right for torturing our new friends!" *Growls at Bowser*

Bowser: *Whimpers in fear and sees Peach* "Peaches..." *Chuckles nervously* "Uh, listen, this is not the way I pictured it, but give me one more chance."

Peach: "Ew, no!"

Y/n: "Do the honors, Peach."

Bowser: "No, no, no, no, no--" *Peach force-feeds Bowser a Mini Mushroom causing him to shrink; in a high-pitched voice* "Hey! Hey! That is not cool!" *As Toad puts him in a jar.*

DK: "Ha! He got the Blue Mushroom!"

Clover: "Who's the pipsqueak now?"

Y/n: *To Peach* "See? Told ya I'd get you a pet turtle."

Peach: "Not bad, pretty face. Clover, Sam, Alex and Britney. All four of you were so brave."

Clover: "Thank you."

Alex: "Oh, thanks, uh, yeah, it's kind of our thing."

Just then, Y/n & S/n's parents ran up to them in joy.

Mama L/n: "Ah, my babies! My heroes!" *embraces the siblings*

Papa L/n: "Wahoo! Y/n! You were amazing! *laughs*

Y/n: "Gee... Thanks, dad."

DK: "Ah, bring it in!"

Donkey Kong pulls everyone for a back-breaking hug. Suddenly, the sound of applause sounded as Y/n went over to Peach.

Y/n: "Um... Princess?"

Peach: "Yes?"

Y/n: "There's something I want to tell you for some time now?"

Peach: "What is it?"

Y/n: "Not to sound like Bowser but..." *Blushes & gulps* "I love-"

Y/n was suddenly kissed by the beautiful princess herself as the girls felt jealous but happy for him.

Y/n: "Wow... D-does that mean...?"

Peach: *Smiled* "Yep."

Suddenly the heroes turned to see the entire populace, including Y/n & S/n family Francis, his owners, and even Spike cheering for Y/n, S/n and the spies.

Spike: "Let's hear it for the Super Spies and the Super Y/n Brothers!"

The populace cheered on for the heroes. As for Francis, he looked at Y/n and nodded his head in respect. Y/n nodded his head in respect back at Francis. Y/n doesn't mind dogs now but what matters is that Beverly Hills is saved. As the cheering went on, Jerry spied on the siblings knowing they found out the girls' secret but was pleased that the Y/n Brothers saved the spies from Bowser.

Papa L/n: "These are my kids!"

Giuseppe: "Wahoo!"

The siblings looked at each other and did their handshake.

Y/n & S/n: "Ay!!!"

Y/n, S/n, Alex, Sam, Clover, Britney, Peach, Toad, and Donkey Kong strike a pose.

Y/n: "YEEHAW!!!"

The heroes appeared in a newspaper with the headline "BEVERLY HILLS & LOS ANGELES SAVED!", tacked onto a bulletin board in Y/n's bedroom. He was sleeping when his alarm went off and Y/n stopped his alarm.

https://youtu.be/wuJIqmha2Hk

Music Insert: Mr. Blue Sky (By Electric Light Orchestra)

Y/n: *Yawns & stretches* "What a feat yesterday."

S/n: "Morning, bro. Ready for another day in Malibu-U?"

Y/n: "If you're willing to tackle the plumbing biz yourself."

S/n: "Oh, I'm up to it all right."

Y/n: If ya say so. Call me if ya need me.

Y/n & S/n got dressed, drank their coffee, collected their tools and school supplies and walked out a door into the Mushroom Kingdom, where they now live.

S/n: "Hard to believe we have three homes! One here and two in the Real World!"

Y/n: "Hope the girls are fine with that."

S/n: "I'm sure they are."

Green Toad: "Good morning!"

Yellow Toad: "Hello!"

Y/n: "Morning!"

The siblings raced each other by hopping and jumping off of a few blocks, landing on a floating platform to a Warp Pipe and jumped in.

Y/n: "Let's-a-go!"

S/n: "Wahoo!"

And so, The Y/n Brothers along with Alex, Sam, Clover and Britney of W.O.O.H.P. saved Beverly Hills and the Mushroom Kingdom from the furious rage of Bowser. Y/n made Bowser his own first archenemy from the popular Nintendo games. Though, he remains on guard to make sure he doesn't make Peach's life miserable nor torturing or killing anybody else. He was lucky that he made Peach his first girlfriend but many more lovers will come to him. Y/n's desire for adventures grew passionately but that's another story.

THE END!!!

Lumalee appeared and stared at the readers.

Lumalee: "Now that's a happy ending. Or is it? Because everything's over now. And all that's left is you and the infinite void." *beat* "Kind of makes you want to play saxophone, huh?"

https://youtu.be/ZqElBl8RGIM

Music Insert: Level Complete (Composed by Brian Tyler)

Lumalee pulls out a saxophone and begins to play music and winks at the readers. The music continues.

Meanwhile Bowser was playing his piano again while in defeat.

https://youtu.be/2zK5SnUQXPg

Music Insert: Peaches Reprise (By Jack Black)

♪ Y/n, S/n, some spies and a Donkey Kong too

♪ A thousand troops of Koopas couldn't keep me from you

♪ Princess Peach, at the end of the line

♪ I'll make you mine

♪ Peaches, Peaches, Peaches, Peaches, Peaches

♪ Peaches, Peaches, Peaches, Peaches, Peaches

♪ I love you

♪ Oh-oh!

♪Peaches

♪Peaches-

Bowser was interrupted by lights coming on and a blue Toad guard came in, banging on the birdcage prison of the still tiny Bowser.

Blue. T.: "Hey! Quiet in there. Lights out, little guy."

Bowser: *High-pitched voice* "Hey! You can't treat me like this. Do you know who I am? I am Bow-"

The guard slammed behind Bowser as he groaned in anger.

Bowser: *High-pitched voice* "I hate you, Y/n! I HATE YOU!!! I WILL DESTROY YOU INCLUDING EVERYTHING AND EVERYONE YOU LOVED!!!"

The mini-Koopa King sulked in defeat and depression as the scene faded to black.

Epilogue...

After concluding, somewhere in the sewers of Los Angeles, an egg with gold spots lays among the rubble and begins to hatch.

A/n: "Pretend it's a golden egg."

????: Yoshi!"

END OF CHAPTER