Heya guys, I guess this is it huh? Hehe… You know I'll be back. For those of you who know some of the Undertale Songs from Youtube, expect to see some references in here. And finally, Disclaimer: I Don't OWN Undertale nor RWBY. I Don't OWN the Music Used in the story. Now, Let The Beginning, End.

XxX

The lights came on and Floweys Omega form showed for all the world. Frisk felt the same fear they felt way back then… but no.. this was different. This time they were surrounded by friends, this time when they called for help someone would come.

Sadly Frisk should have been fighting not thinking as Flowey launched them off the stage onto the metal flooring below with nothing less than a happy smile. Flashbacks came of the same thing happening in the void, but this time a long string of spaghetti came down to their rescue. "COME HUMAN, WE MUST DEFY NATURE! NYHEHEHEHE!"

Frisk began to climb the overcooked spaghetti, which made it rather firm, but as they got up they saw how good at multitasking Flowey actually was. Sans was trying his best to counter all of the smaller seeds and lasers that were being emitted with bones and having quite the success. Papyrus was playing support on the back rows, and Undyne was whacking away at some… strange looking.. Mouth chains?

They didn't waste any more time analyzing as they jumped into the heat of the fray, slicing away at vines galore. "bRing iT oN kID, yOur DEtErmInAtiON iS sTRonG. iT'S kiLL oR bE KiLlEd sO dON'T GIve UP TiLl oNe oF uS IS gOne!" Frisk then heard the same sound they heard back on the first heart play again. That same song. Frisk remembered it so well, they couldn't help but feel a tinge of regret thinking about Asriel.

It dawned on Frisk as they dodged a Flowey Bomb that if they died this time, Flowey has no reason to reset. If they died this time there would be no coming back. 'Frisk my life's on the line here too. I've got an idea.' Chara said from within as they barely dodged another Mouth Chain. 'What is it? I'm kinda b-'

And Frisk was once again hit, but this time the caught the edge of the stage and managed to pull themself up. 'Look, play defensive for about five minutes. That's all I need.' Frisk nodded as they charged back towards the mouth of the abomination. Undyne had switched her attack from the Mouth Chains to finger guns. God this Flower was weird, but each attack they countered rilled up the crowd even more.

Sans teleported behind them, "five minutes right? that's all Chara needs?" He asked, Frisk wasn't sure how he knew about their mental conversations but didn't have the spare time to ask. Hell if it weren't for Sans they'd be on the ground. Frisk had already seen three Gaster Blasters appear behind them. So Frisk nodded. "good then get everyone off this stage, now."

Frisk ran up to Undyne first and pulled her arm, "WHAT KID I'M BUSY?!" Frisk motioned to the edge of the stage knowing there was little chance that she would hear them speaking. Undyne rolled her head in disappointment but got the message and began a mad sprint back. Papyrus saw the two and wanted to be 'with the cool kids' and followed. That was easier than Frisk had anticipated.

Floweys attacks slowed at the notice of the trio leaving until he stopped entirely. "...what?" He asked, his voice concerned and surprised at the same time. "Isn't this supposed to be the final battle?"

Sans laughed. "look. i've gotten really tired of stuff nowadays. everyone just wants to see me pass judgement. everyone waits for me to say another pun. everyone expects me to play by the rules more than anyone else, but i'm done." Sans didn't didn't stand there thinking of a pun, he didn't prepare for an oncoming attack. Instead he did something no one saw coming.

His ever present smile seemed to fade as bones erupted from the ground into Flowey's form making him angrier than ever. However, when he went for a counterattack Sans used telekinesis to hold the large green vines in place. His eyes went dark as a distorted version of Megalovania began playing, and around him an orb of bones erupted destroying all that was in its path.

Flowey began his attack, this time with Mouth Chains but Sans just teleported around the stage. "go ahead and try and hit me if you're able." He teleported again. "i've got a bone to pick with you today. you're out of control you've got to go away."

"oH QUiEt wItH tHe uPbeAT cRaP. i kNOW whAt yOu REAlly aRE! HAHAHAHAHAHAHAHA!" Flowey sent a bragge of different attacks varying from seeds to bombs. Sans quickly demolished them all. "It's a beautiful day outside…"

"Don't give me this crap you trashbag!" Flowey swore and let loose a reign of explosive leaves, most likely from Cinder's soul. "i'LL KiLl yOU!" Sans sighed and teleported away again. All too easy, yet no one understands attacking won't do anything.

"People are cheering. The skies are brooding." Flowey yelled in anger as he remembered getting dunked on way back in the Underground before Frisk took his reset ability. "I'LL kILL yOu SaNs! I'Ll kILl You aND YOUr bROTher ToO!"

"On days like these.." Sans took a deep breath in as he jumped over a poorly angled vine Flowey had shot in rage. "Things like you.." Flowey sent well over a hundred different attacks throughout the arena but Sans just teleported on top of Floweys monstrous figure and let his own attacks damage him as they went to kill Sans.

"SHOULD BE DEAD ALREADY." He then summoned Gaster Blasters by the tens to shoot down the giant body. Little by little he felt it crumble beneath him as he summoned a walkway of bones to make a staircase back down to the stage. Thousands of little bones crawled around Flowey bringing his health down at a shocking rate.

"i'LL JUST rESET! yOU cAN't STop ME!" And as he went to reset the load failed. "WHAT?!"

Frisk ran up the stairs and came out behind Sans, out of breath but a smile on their face. "five minutes already kid? things were just getting fun too." Frisk gave a giggle and a thumbs up. Sans then summoned a line of bones as tall as Flowey. "Any last words you overused final boss?"

Flowey smiled and let loose a demonic laugh. "Why yes, I do actually. I-" and the boss fell over, Sans didn't even let him finish before killing him. Unlucky for him he wasn't expecting a bullet to go through his head. Sans dropped to the ground as the bullet went through his skull and he felt ketchup poor out. "...Papyrus… do you want anything?"

"NOT TO DIE!" Papyrus said running over to his brother. Sans grinned at him. "Oh yeah, you're alive this go around. Don't worry, this is merely a flesh wound." Papyrus let a few tears begin to fall down his face. "STOP IT SANS! I, THE GREAT PAPYRUS.. NEED THIS LAZY SACK OF BONES I CALL A BROTHER…"

Sans laughed a bit before a few tears of his own began to fall out as well. His body began to fade away as he became nothing more than dust on the ground. Nothing more than dust in the wind. Papyrus sat there cradling his brothers dust welling in tears as Undyne set into a rage.

"WHO DID THIS?! WHO THE ACTUAL HELL IS RESPONSIBLE?!" Her answer came sooner than expected as Cinder walked on stage. She laughed as she deflected Undyes easy hit with a few razor leaves.

"Who would have thought it was so easy to fake your own death? I mean getting a replacement soul for the plant was a bit more hassle than needed, and tricking the entirety of Team RWBY was a challenge too." She swooned, an evil smile spreading across her face as she watched everyone in team RWBY speed their way towards the stadium entrance from the stands.

Cinder then turned around and began to walk away as Undyne sent as many spears as she could summon towards her. She just user her Fall Shield to deflect them and smiled as an explosive leaf went off under Undyne's feet, sending her flying off the stage. Cinder began to fly as she approached the edge of the stage and flew into the commentators box. She picked up the mic and spoke.

"Ladies and gentlemen, it seems like we have one final battle for you all. Little child Frisk VS Team RWBY!" She looked up atop the stadium walls to see Mercury recording. The world would react great to seeing the slaughter of a small child by 'Beacon's brightest generation'.

Frisk watched as the four sprinted towards them. They called for Chara, but ever since Flowey's reset failed it was silent. This battle would be Frisk VS RWBY only. Frisk pulled out their knife once again as they remembered fighting Sans. They watched the foursome climb the steps as tears welled in their eyes.

No.

This wasn't how it was supposed to happen.

Frisk's LOVE wasn't that high, was it really enough to cause all of this? Sans was dead, Asgore was dead, Asriel was dead, and so many innocent people were too. As RWBY came closer Frisk couldn't help but let more images flash into their mind of what happened back in the Judgement Hall. Once again they had chosen the wrong path. Something had gone wrong, they didn't like this ending. Chara was gone, Cinder was alive. Their new friends stood before them with a bloodlust.

This wasn't how it was supposed to happen.

Frisk closed their eyes with a new determination and felt the world fade away. Imbued with Determination, they plunged their knife into their soul…. And then the world went dark.

Frisk chose to RESET.

XxXxX

Frisk awoke not in the Ruins where they expected to be, or even in the SAVE in The END. Instead they awoke in a void. This was a place that Frisk knew all too well. It haunted their dreams, thinking back to the grey door and the memories of the damned.

Frisk stood up and began walking in no particular direction, knowing that their objective would come to them.

"So, you finally broke the code?" A voice echoed through the empty plane. Frisk recognized that tone. That broken tone. One that was usually shrouded and surrounded by strange symbols instead of language. This was the voice of him. "What made you reset, Frisk?"

Frisk looked down at the bloodied knife that appeared on the floor, taunting them. "I couldn't take it. I chose the wrong path. I have to try again, there's a way I can spare everyone this time."

He laughed. "Child… you picture me as a foe, not as a friend. You have good reason for that too. I condemned you all to that world, but I had my reasons."

Frisk felt a fire burning inside of them. It was his fault that they had to reset. They had no idea if Sans would ever be the same considering Sans had never died before. They hated themself for that. They hated him for that. "Child. You finally reset. You're here, so I've been set free. The moment I decide to reload this save file you will fall down to the underground and die. We will escape the underground with the seven human souls. We will ALL be free Frisk, and it's all because of your sacrifice too."

Frisk felt like crying right then, but like a switch their grief turned to anger. They were mad. This was his fault. This was his doing. Even in a reset Frisk could no longer control anything. It made them mad. They were mad. This was his fault. This was his doing.

They grabbed the knife off of the floor and swung madly into the darkness. That same rage they had felt when fighting Sans. Him killing them over and over and over and over and over again. That same bloodlust they saw in Ruby Rose's eyes. No matter how hard they swung that knife it never hit anything though. It wasn't long before Frisk broke down the same way they did back then, and cried.

"It's not fair… I just wanted them all to live. I've stayed true to what I believe. I've stayed determined. Why.. why is nothing the same anymore?" Frisk called out to him. "Why is nothing the same?!" They yelled.

Gaster appeared behind them and soothed them, rubbing his cold hard hand on their back. "Child…. Frisk… you're quite out of character without the underground aren't you? Don't you understand? Have you not put the pieces together yet?"

They didn't care that he was in reach now, they just wanted to make some kind of deal and make all of this go away. Make everything right again. "W-what pieces?"

"Look around you. This is no longer a game Frisk. This is a story. This is a story about you. About you meeting new people, and seeing new places. This is the stor-"

Frisk turned around and shouted at the doctor. "I don't CARE! How about you take the SAVE file like you planned and fix whatever?! At least everyone lives then!"

Gaster then got down on one knee, and from under his black veil he wrapped his arms around Frisk and gave them a hug. "I understand now what I meant. What it feels like to have a choice again. My plan was to make you reset in that world so when you went back to the RESET point or your SAVE you'd be stuck in the void long enough for me to kill you. If I killed you I'd be, by process of elimination, the most determined being in this dimension."

"Then why aren't you doing that now? Why explain your plan to me now?" Frisk asked him, looking down at the knife wondering what it really meant to them.

"Let me spin you my tale young one, while you work through your depression..."

XxXxX

I had been in the void a long time Frisk. A very long time, so long in fact that I grew tired of seeing the faces of the underground and began to look for others. Countless worlds I scoured. Searching for new and interesting lives. I saw magic users and human hybrids. I saw demons and zombies. I saw life.. And death.

One day I stumbled across a man who saw the future through his dreams. People would communicate to him through those dreams. Gods, Titans, and other heroes. It gave me an idea.. What if I could do the same?

I began to fiddle with the idea and watched him through his adventures as he fought against Gods and won, cried to Titans when he was in need and got a response, and even beat death. As time continued I did research, things that were very… very… interesting. As time passed I cracked the code and began to communicate through people. I began to change worlds without even being there.

I remember what people called me, they called me a developer. An author. An artist.

Frisk, let me change your perspective. Everything I'm about to say is for the people in the void listening to us right now. Yes, YOU reader. You think Toby Fox was the dog right? No, he never was. Toby Fox was me, Gaster.

Think about it, I created the Core, I was forgotten by everyone when I left because the game was done. I fell into my own creation because I was developing it. My programming is an extension of me, which is why I am "listening".

I didn't want to be forgotten. I knew that even though I had created all of that someone else would take all of my work, I would become nothing more than the ghost in the machine. Even lesser than a dog.

Now, look at me. Now I'm no longer Toby Fox, now I go by Speedarious. I've seen some things and from the void I've written the story. I've changed how the story ends. Isn't that what an author does? When the battles began I wrote something, "Entry Number 22. It worked. Now for Phase 2.". That was me of course. You were the working part. Your involvement and attention was what worked. Phase 2 was to begin wrapping it all up. There was no going back anymore.

Weather you like it or not, you all helped me kill them. You developed the story. You became Gaster. Now Frisk, lets come back to what you understand. Let the readers be readers

It's pretty obvious I used the void to manipulate people to do my bidding and create things like the underground lab for me. Everything played in my favor, but now that you're here I realize that what happens is no longer in my void to play with. I am no longer the developer. The one who plays with my void, is dark, darker, yet darker.

XxXxX

"Frisk, for the first time in this story you have an option. You have a choice. This won't be decided by me, but by the other Gasters of alternate timelines. Listen closely."

Frisk nodded to him.

"Number one: You let me reset. I go back and fix myself. I never leave the underground and we live a happy life on the surface, whatever happens in Remnant is canon as it will always be. " He paused and let Frisk ponder the option.

"Number two: You reset again, and go back to Remnant and try again. This time however I won't intervene, and you won't remember a thing. I might even send over some of Remnant's best to us. Who knows?" Frisk was slightly confused on that one. Was he talking about other FanFics…?

"Number three: You go back to Remnant and I do as I had done this time around, and you try to make things right. Finish the fight per say. You will try and undo A Grim Future."

Frisk pondered the three options before choosing. "I want to do the third." They asked. Gaster smiled and a portal opened up that showed the forest where Frisk had originally awoken. "Frisk, this is how you got here in the beginning. Weather you knew it or not that wasn't your first go around. Maybe this time you'll get it right though."

Frisk smiled and jumped through, the portal closing behind them. Gaster then looked up at you.

"The rest is up to you. Take control of Gaster. Become me. Alter the story from the void and change the timelines to your bidding. You know what is supposed to happen, so it's your own determination that will show Frisk and the monster crew what to do…. Frisk, the fallen child, falls once again, this time into the world of Remnant. While Frisk's friends will may try and save em, it may be too late as disaster is bound to strike soon. After all the powers of FALL can be quite devastating if left to the wrong hands… Those hands are up to you."

XxXxXxXx

(EDIT: THIS FANFIC HAS BEEN OFFICIALLY CONTINUED. ANOTHER CHAPTER AWAITS.)

There we go, that's it. Thank you all for reading A Grim Future! This is the neutral ending of a RWBY/Undertale Timeline. For what will happen in the others, that will be up to you guys and gals. I give permission for anyone to create another timeline based off of this one. (Or your interpretation of a finale for this that you like). All I ask is that you tell it's a spin off of A Grim Future so me and others can read it. Good luck my fellow Gasters.

This ride has been a wild ride guys, thank you for everyone who showed support. If this wasn't the end you were hoping for, then perhaps Gaster will give you a Pacifist route or a Genocide route. Just remember, one difference can change the entire story. It's been a blast writing this and reading all of you guys and gals comments. By the time I'm writing this the Story has a little over 9,300 views on the traffic graph, and for someone who's technically a first time FanFic writer that's a huge deal. Just as Toby Fox did, it's my job to leave this open to all of you. Undertale has no end, and chances are will never end. A happy ever after isn't possible, well at least in this timeline. This chapter has a lot of thought and depth, multiple meanings. That's why it took so long to write, so reading over Gaster's parts may shed some light if you're confused.

Reviews. Pony: Thanks on the Title pun and I'm considering a Fairy Tail/Undertale crossover. HeroBladeRiyet: The blank grave was for Gaster, Chara never had a grave, but maybe in another timeline.. Chara did have one… pokewarrior: Oops. Does this count as a cliffhanger? At least you can hope that RWBY, the other hunters, Undyne, and Papyrus can beat Cinder. Torrun451: I considered it, but Frisk and crew aren't the kind to say goodbyes, and Gaster wouldn't die so easily either. After some long thought about it I decided to leave it open for everyone's interpretation. Hence why I said anyone can make a spinoff or finale. Acct: Yeah I PM'd you, and for anyone else who didn't get it since using that font breaks Fanfiction a bit he said it in this chapter.

As always everyone, Thanks For Reading and Have A Great Day!