Critical_Error goes through the other side of the portal, and he enters a corridor, and the moment the entered it, the sounds of fighting is heard. It is obvious that the human is fighting against Dust Sans, and is trying all that they can to kill him. Well, Critical_Error cannot waste time. He needs to go and see the battle, so that he can take the human's place to fight against this version of Sans.

Critical_Error than ran, as his boots echoed at the steps that he is making on the floor of the hallway in which leads to Judgement Hall. He ran, and when he reached the entrance, he saw that the battle is still progressing. The human, they are fighting against Dust Sans, and needless to say, he is pretty terrifying in some ways.

The person that he is seeing, the skeleton that he is seeing, it resembles who he once used to be, with the blue jacket and the grey hoodie and the pink slippers, as well as being shorter. But the difference between his original self and the Dust Sans version is that the hood is over his head, and his eyes are a much more different appearance than it was before, to make him what seems to be a menacing appearance. So much that even the kid seems to be shivering and quaking in their shoes at the mere sight of Dust Sans' crazed, insane grin.

He has a psychotic grin on his mouth, the upper part of his face is shadowed, and his left eye is leaking out purple mist. But both of the eyes are red, with the left red eye surrounding a cyan eye. This meant that, like his usual self, he has sacrificed the yellow justice inside of himself, and replaced it with the red menacing willpower of pure, ungodly determination. The same one that the human has, but with an additional effect.

As the human ran forward, Critical_Error watched, as the human tries to strike at Dust Sans. But Dust Sans avoids the attack, and than stabs the human in the leg, causing them pain. But Dust Sans is not just yet. He than snapped his fingers, and friendliness pellets formed from the air, and then struck at the human, causing even more damage to them. But the human ate some food, and healed most of the damage that they had taken from the fight. But this does not seem to bother Dust Sans, as he than spoke out.

"You really need to try better than that, Kiddo. We're gonna have a mad time."

He than turned the human soul blue, and slammed them into the ceiling, as he forced the human to be upside down, and tried to summon bones underneath them to pierce them. But the human jumped, before Dust Sans slammed onto the left wall of the Judgement Hall, and the human jumped again, in order to avoid getting hit. But the human was not careful, and they ended up getting stabbed by another set of bones that pierced them badly. The effects of KARMA poisoning their health, as they began to slowly be killed by the power of the purple bones, and the increased strength of Dust Sans, due to his Determination. Dust Sans smiled, as the kid snarled, and they grunted a little bit, while they charge at Dust Sans. But Dust Sans than summoned some Blue Spears from above his head, and pierced the kid with them, as the kid got stabbed in the chest and the head. It looks like this version of Dust Sans manage to successfully kill Undyne, which he had intended, and now, thanks to that, is even more powerful than he has been before. But comparing it to how powerful and versatile Critical_Error when he fights, it will mean nothing to Critical_Error, as he is way more powerful than even the Sans of Dusttale.

He than looks at the left side of the wall, and saw that the Human is going to come back to life, as the entire universe' timeline reset. Critical_Error and Dust Sans are completely unaffected by this, and the human began to return. Well...he cannot let this happen, now can he? He is going to need tie human out of the way. But he needs to wait until they reveal themselves first. And than...well...they are gonna need to fight for one heck of an hour of being tired in red string.

The moment the human appeared, and began to walk up to Dust Sans again, he than teleported behind the kid, and wrapped his arms around them in a type of trap hug, as the human is caught by surprise at what Critical_Error is doing, even though they did not see him coming up from behind. Critical_Error spoke out.

"Hate to break it ya, kiddo. But I'm gonna need to take your place for now."

He than made some red strings, and tied the human onto the ceiling, in order to make sure that they do not escape from this trap that Critical_Error has made for them. Critical_Error looks at them with his code-filled eyes, as he than spoke out.

"Sorry, kiddo. But this is nothing personal. Just something that I need to do for my boss."

He than walked up forward, and kept walking, only to face Dust Sans, who is waiting for the human. But the moment he saw Critical_Error, he was caught by surprise, as he had expected the human to come instead of whatever it is that he is seeing before him. Dust and Ctitical_Error stared at each other in the eyes, with Dust Sans not knowing what to say, until now.

"Well...you're someone I never thought would be coming."

Critical_Error looks down at Dust Sans, as bout red and blue eyes stared at each other, as he than spoke out.

"Let's just say that the human is not a viable for now. They'll be available as soon as I get out of this place, pal."

Dust Sans looks at Critical_Error, and he spoke out.

"Why is it that you are here, buddy? I highly doubt it is for a simple hello."

Critical_Error nodded his head, confirming that this is the case as to what Dust is saying, before speaking out.

"You're right about that. The truth is...I need you for something. And it is very...important for me."

Dust Sans smiled menacingly, as if he knows the answer to what it is that Critical_Error will say to him, even though he does not know what he will say, as he than spoke out.

"If it is about trying to kill me, than you can forget it, because I'll be killing you. Besides, you have Determination inside of you, which is just what I need to kill the brat!"

Critical_Error sighed, as he than prepares to speak out to Dust, but he knows that Dust is likely not going to listen to him. So he than decided to try another choice: fight.

He than stepped back, and he watches, as Dust Sans than summoned his Gaster Blaster and fired it at Critcal_Error. But Critical_Error, he does not amused, as he than snapped his fingers, and than, his Fatal_Blaster appeared behind Critical_Error, as it than fired its purple beam at the Gaster Blaster from Dust Sans, and effortlessly pushed it back, before charging at Dust Sans, in an attempt to grab him and tries to subdue this Sans. But Dust Sans got out of the way, and he than summoned a Trident, in an attempt to pierce Critical_Error and try to kill him. But Critical_Error evaded the attack. He than made a Fatal_Bone, and snapped it in half, and used a sharper part of the broken Fatal_Bone in order to use it to clash against the Trident. Normally, this would be a very stupid and terrible idea, due to the fact that, Dust Sans is using a trident, and Critical_Error is using a broken sharp bone as a knife. But for Critical_Error, it works, as he is able to clash and defend against the trident that Dust Sans has, after he had been able to kill Asgore. And an even better upside to this, is that Critical_Error is much, much more stronger than Dust Sans, after getting all the power that he needs. to fight off against the human that had been responsible for driving Dust Sans to this level of insanity and desperation. But Dust Sans is just as determined as the human, and does nit plan to give up in the fight against Critical_Error this easily.

Dust Sans than teleports, before launching a dozen fireballs at Critical_Error, all just to burn him. Critical_Error, however, raises a bone wall, in order to defend against the attack. The fireballs hit, and the bone wall did not get a dent on its surface. Critical_Error simply glared at Dust Sans, due to the fact that he is fighting him based on assumptions, and the fact that he has Determination inside of him, just to defeat the human. But the problem is...he cannot die. The Determination inside of himself had been affected by the Blue Strings from Error Sans, and because of that, it makes him practically immortal. So basically, Dust is, in a way, fighting against a battle that he has no hope of winning against.

He than launched a bunch of spears at Critical_Error, but Critical_Error than yanked the red strings out of his mouth, before he swung it and than he wrapped the red strings around the light blue spears. Dust Sans was a little surprise at this level of precision, but than, Critical_Error swung the spears back at Dust Sans, but only to subdue him, and nothing more. Dust than raised some purple bones from the ground to act as a shield, and defended against the attack. Dust Sans, however, was not prepared with the fact that Critical_Error is now right behind him, and is ready to attack him. But Dust was able to quickly react to the danger, and teleported out of the way.

As Critical_Error missed, he than looked around to see where Dust is, when suddenly, he looked and saw his soul turned blue, as he is then quickly lifted in the air and he then slammed onto the ceiling very painfully. Critical_Error, realizing what is going to happen, immediately jumped out of the way, as the bones erupted out from the ceiling and almost tried to piece Critical_Error. Luckily he was able to react to the danger just in time. But where is Dust Sans? Well...he is hiding behind one of the pillars, and is trying to make sure that Critical_Error does not find him. But Critical_Error, he does have a way to find him. He than pulls out the red strings from his mouth again, and than, he launches them. But the thing about the red strings, is that they automatically go after the target in order to try and ensnare them inside of their painful grasp. In other words, the Red Strings were able to find Dust Sans, and wrapped around his leg, before dragging him out of the pillar, and Dust Sans was than slammed into another pillar, although this did not damage Dust Sans, as Critical_Error simply blasted the pillar with enough force to Lanier collapse. He does not want to damage Dust Sans, just to subdue him in anyway that he can. Critical_Error glared, as Dust Sans then erupted from the remains of the pillar, and needless to say, he does not look very happy about what had just happened.

"Heh. Tougher than you look. But doesn't mean that I'm givin' up just yet, pal!"

Critical_Error than looks at Dust Sans, and spoke out.

"You're gonna wish that you did, buddy, because I was as simply holding back on what I can really do."

Dust than looks at Critical_Error, and charged at him with his fist covered in flames. But Critical_Error dodged the attack, and he than jumped behind Dust Sans. Than, before Dust Sans realizes what was about to happen, Critical_Error pulls out the Pink Strings from his mouth, and wrapped it around Dust Sans' soul, and Activated its effect, in order to subdue Dust Sans long enough to get the code from him.

Critical_Error than walked up to Dust Sans, and puts his hand on his shoulder, as he than copied the code from Dust. Once he copied enough, he let's go of Dust's shoulder, and once he backed away, he than released Dust Sans from the Pink Strings, before he than removed the red strings from the human, before he teleported away, so that the human can continue their fight against Dust Sans.

Critical_Error than landed in Snowdin, as he than made a screen that shows Error404 Sans' face, before he speaks out to his superior.

"Error404, I got what we needed. The code of Dust Sans is with me."

Error404 nodded his head, as he spoke out.

"Good. Now come back and place it on the jar that I have for the code that you have with you."

Critical_Error nodded, as he than opened the portal, and returned back to Error404's dimension, and saw that the Error404 is waiting for him, with the jar that says Murder, referring to the original name of that version of Sans.

Critical_Error put his hand over the jar, and the Data of Dust Sans entered the jar, and began to fill up, before Error404 spoke out to Critical_Error.

"That's enough, Critical_Error."

Critical_Error stopped, and Error404 walks away, but now before speaking out.

"We are making good progress in the different Data of the different Sanses that you are copying, Critical_Error. We just need some more and more powerful unique Data for us to use so that my brother, and your Papyrus, can be returned back from their deaths."

Critical_Error nodded his head, as he spoke out.

"Do you wish for me to hunt for more of the other Sanses so that I can use their code for your brother, Error404?"

Error404 looks at Critical_Error nodded his head, as he spoke out.

"I do, but first, awaited my next order of who you are going to be looking for, because we need to make sure that this works for us, and we do not want to extract the wrong code for us to use to bring back our brothers."

Critical_Error nodded, as he than walked away and goes back to his voice, so that he can continue with bringing back his Papyrus, and luckily, he had found another alternate version of the classic timeline where he can use this version of Papyrus to bring it back. It better get, 2 timelines, and both of them are similar in names, but with different types of battles. What is these 2 timeline called? They are both simply called...

...Disbelief and Dustbelief.