Error fired the Gaster blasters that surrounded him and cleared away the dark mist. The creature that had been hiding jumped out of the way of a blast only to get a black bone shot into its chest, causing it to fly back into the side of the mountain. Error used one hand to shoot strings towards the creature, wrapping it up as it feel from the mountains side and began spinning it around before slamming it into the ground.

The creature growled before breaking into a puff of purple smoke, reassembling behind Error. It shot it's tendrils forward to try and stab Error in the back, but a Gaster blaster suddenly appeared beside it and blasted it point blank. Error held out his hand and a purple heart appeared in front of the creatures chest. Error smirked and moved his hand upwards, causing it to float up before he slammed into a pile of black and red bones. He used his free hand to create more bones, using them to build walls around the creature before he started furiously basing it into every single wall of bones, much like Sans did to frisk in the genocide boss fight.

Error was knocked back off the edge of the cliff when the creature created a huge explosion of dark purple energy, freeing it from Errirs grasp and destroying the bones. Error glitched back into his previous spot while in free fall and smirked. "W-W-Well, looks like s-somebody's getting aggravated."

The creature got to its feet and growled with a gleam in its glowing yellow eyes. "Why must we encounter one of Authors displaced everywhere we go?" It asked no one with a great deal of anger. "First Metal Sonic, then those Galactic Rangers and now you. Why must you all insist on getting in our way?!"

Error gave out a glitched chuckle before putting his hands in his hoodie pockets. "Well you s-s-see, we d-don't want our world-orlds turned to as-ash or anything, so w-w-w-we'll just keep destroying everything that t-threatens our homes." Error didn't give it time to finish as he wrapped his strings around the heart and began to pull, effectively slicing it to pieces, causing the creature to turn into a cloud of purple mist before it came together and created a dark purple orb.

Error smiled as he walked over and took the orb in his hand before opening a hole in reality and tossing it through. Now, you didn't think I'd keep a fight scene that short did you?

Suddenly more and more of the creatures began to appear around him, their yellow eyes glowing with hate. They all flexed their claws before shooting their tendrils towards him. He glitched out of the way and grabbed one in his ropes before using it to strike other creatures. Once he was done with it he tossed it into their air where it was impaled by multiple bones, forming into an orb like the last one.

He was caught by surprise as one of the creatures appeared behind him and slashed his back with its claw before wrapping it's tendrils around his arms and legs, holding him in place while all the creatures began stabbing, slashing, punching, kicking and blasting him. He managed to snap his fingers, causing Gaster blasters to appeare in from of each creature before blasting them away. He glitched out of reality for a moment and reappeared with no damage visible on his body.

"Heheh...y-you'll have to do be-better than that-at." He taunted while smirking. All the creatures got to their feet and held out their claws, they all aimed at Error and unleashed a combined barrage of blasts. Error opened a hole in reality and accessed the code of the universe, altering it slightly to slow down time. Once it was slowed he jumped out of the way of the oncoming barrage and jumped from creature to creature. Stabbing bones into their bodies, placing Gaster blasters around them and wrapping them in strings.

He jumped to a safe location and fixed the code, causing time to go back to normal. The blasters fired, the creatures felt the bones pierce their bodies and those in the ropes were split apart, all in one fell swoop.

"Code al-al-alteration. G-Gotta love it." Error said as he watched all of the creatures form into orbs. He smiled as he snapped his fingers, causing the ground on the clif to open a hole in reality, causing the orbs to be sent somewhere that they could be destroyed. He closed the hole and sighed. "W-Well...that's enough ex-ex-excitement for o-one day."

Nearby, a soft white glow appeared before Toriel took its place. "There you are, I sensed something was wrong and felt reality opening up, I assume you were fighting something?" She asked while walking over to her fiancé.

"Y-Yeah, sorry for d-ditching you all like-ike-ike that. I found a-a few Nightmare Fuels, took c-care of 'em."

"It's alright, I know how much you like getting into these battles because you get to use coding to fight. Besides, Thai isn't the first time you've disappeared to fight some strange creature."

"Heheh, y-yeah."

"Well come on, everyone is probably wondering where we've gone to. Author can deal with the Nightmares orbs, right now I think we should get something to eat, using the code makes you hungry." Error smiled and nodded, allowing Toriel to teleport them back her way instead of him glitching them there.

In the trees, one lone Nightmare Fuel stood with its fists clenched and it's tendrils ready to strike. "Weaklings, I should never have brought such young Nightmares to a world with a reality bender displaced."

The Nightmare growled before forming into a dark cloud of mist and fled deep into the woods, ready to hatch a new plan to kill the displaced and ponies of this world.

Author's Note

As usual please feel free to point out any mistakes and I hope you enjoyed.

The Nightmare Fuels will be explained next chapter.