Mirrored Determination

A Determined version of Mirrored Insanity. Mostly, this battle shouldn't even exist."'Why do you look like me?' Alternate Dust!Dtale!Sans asking Insanity!Dtale!Sans."

Story
As the Determinatale Multiverse started growing and growing, it also caused side-effects to happen, creating things that were meant to not exist. Each alternate Character, Timeline, and AU creates a different distortion storyline. Then, the Determinatale Multiverse was separated into two parts, Alternate and Original. Soon, it was separated into four parts and even more. Now, each side-effect has also caused different AU to be split into two, causing different possibilities to be created. Now, you can say that the Alternate Timelines, Characters, and AUs is like a doppelganger or a clone but with a different storyline but still includes the regular Characters. The Determinatale Multiverse did this for a very long time and no one was able to stabilize it until The Determinatale Multiverse created an Alternate Timeline where two massacre murderers met. Alt Dust!Dtale!Sans was waiting for the human to return when The Determinatale Multiverse teleported Alt Dust!Dtale!Sans to Insanity!Dtale, then it destroyed a timeline of Alt Dust!Dtale. Alt Dust!Dtale!Sans was in the Judgment Hall with no differences, except, it reddened. He then turned around and saw another version of him holding Papyrus's head stabbed with a bone. The two met and started a fight.

Phase 1 Insane Determination
Dust use a blaster against Insanity but Insanity spawned in a blaster 2. So he teleport behind him and blasted him right in two The Stonewall then Insanity used a whole lot of Bones and shot it right at dust but than Dust Dodge them all like a master without teleporting. then he summon a big bone and hit Insanity with it but then insanity teleport it and punched Dust and then blasted dust and used a bigger bone to kill dust.

Phase 2 Driven to True Determination
Dust Came back but more powerful he grabbed Insanity head and spins around and launched him all the way to Waterfall and then Dust try to drawn him even though he was fully aware he couldn't be drowned because they are skeletons but he figured that this could give him an advantage and it did once Insanity got out of the water he slipped and then Dust use the massive wave of Bones to hit with a blaster for the finishing shot

Phase 3 Determination against True Determination
He came back in his true insanity form and he is going to end this. Dust didn't know how to feel because he felt great power coming from Insanity. Then insanity punched dust all the way to the ruins and blasted him. Dust knowing he would be killed if he didn't figure out how to defeat him he acted like he is fainted so Insanity ran up and was going to do a punch to finish him but than dust said this is your end very fast and suddenly a massive wave of Bones hit insanity with Blaster blasting him from everywhere dust then punched him right in the face and use a bone to stab him in the chest Insanity was brutally injured at this point enough to kill him but then he had enough he went completely insane and punched Dust so hard he broke through the stone ceiling back into the upper ground aka the human land he survived it though the humans weren't there but they did here a loud noise coming from the mountain Insanity then charged at dust with a bone of death Dust also decide to use a bone of death they charged at each other they hit each other Insanity was thinking that dust is going to die but since they were so close to death and they were about to die dust manage to absorb all the determination and Insanity died.

Eternal Determination
After Alt absorbed all of the Determination, he also absorbed a soul of a dying Insanity!Dtale. Soon after fighting against humans and going back to Underground since he trapped a human that was doing genocide every single time. He started to feel weird and then he realized he was being corrupted which now made him Alternative Insanity!Dtale!Dust!Sans Timeline. He promised to make this human have a I have eternal Hell since mostly the human and Sans have Eternal Determination, and Sans killed everyone on the surface which made his stats completely Unknown since not only he killed all of humanity he also killed every single species and he found a way to kill Phantom Papyrus, Blaze and Chara. Now nobody can reset, there's nowhere to run and Sans has ETERNAL DETERMINATION.

Alternate Dust!Dtale!Sans
He still feels the same. However, after the 'Incident' had happened, seriously, his emotions went a little bit sideways since he hates Insanity!Dtale!Sans. The reason is that Insanity!Dtale!Sans is holding Papyrus's head stabbed with a bone and that reminded him how he killed Papyrus and the difference of how Insanity!Dtale!Sans killed Papyrus, It was a little bit cruel than Alternate Dust!Dtale!Sans killing Papyrus.

Insanity!Dtale!Sans
Still feels the same. He is a bit insane and happy since he usually waits for the human to return and of course, the human doesn't return. He wants to gain more LOVE but finds himself unable to since there are no more Monsters left to kill. Now there is one and he feels overjoyed. He wonders if he kills Alternate Dust!Dtale!Sans, can he access the Save screen and kill the human, then RESET.

Trivia

 * Well, Alternate Dust!Dtale!Sans hates Insanity!Dtale!Sans.
 * The reason why there is a Eternal Determination, is because unlike the original ones, the Dtale ones are more Insane and have more LV, they would do anything to get more so that's the reason why Alt absorbed Insanity!Dtale' Sans Soul.