Sans teleports several times, dodging a mixture of fire and stars as they fly at him. Asriel laughs as two swords appear in his hands, and he flies at Sans. Sans creates a couple bones, but when he tries to block a slash from the swords they're cut in half.
"you know, you're already annoying me." Sans says as a dozen blasters appear behind him.
"Funny, I was thinking the same thing." Asriel throws the swords as Sans, but Sans easily dodges, and the swords vanish. "I wanted Nyssa. After all, this whole show right now is for her." Sans hears thunder from above him and looks up. A few sparks shine in the air high above him. He teleports, just before lightning strikes where he was standing. Some of the blasters are hit, but they remain. The blasters fire at Asriel, but he swiftly dodges them all. "Well, I can always reset, and I know just when I'll I go back to."
"you know, i'm not a big fan of this whole reset thing. i'd really rather you just, you know, hand everyone back over to me." Sans holds out his hand and bones surround Asriel from every angle. When he closes his hand into a fist, the bones fly in at Asriel.
"And yet you're trying to kill me! You don't think, do you?" Asriel shoots stars out at the bones, hitting most. A few get past though, and manage to hit him.
"well, you are trying to kill me, so it's kind of a natural response. besides, if i don't stop you here, then you'll go hurt nyssa, and we can't have that." More bones surround Asriel, and then another layer past that does the same, and then another. "this'll be over real quick if you actually act like a reasonable monster and give my friends and family back." The first layer flies in and, like before, Asriel uses his stars to destroy most of them, though this time he manages to dodge the others, only getting hit once. Then the second layer goes, and only moments after, the third. The second layer gets a few more hits, but over half of the third layer makes it past the stars, and half of those hit Asriel. "unless, you know, you enjoy being a pin cushion for bones." Sans says with one of his eyes closed.
"Now, this is the Sans I remember." Asriel laughs as a blaster appears in his hands. He aims it at Sans. "I was worried you'd lost your touch. After all, my biggest pain was always you." Lights shine out of the blaster, one landing on Sans' chest. He looks down, then at Asriel. The blaster shoots, and bullets rush at Sans. He jumps to the side, managing to land himself in between two of the three lines of bullets. The round ends, but is swiftly followed by another round. He once again dodges. "You must have been distracted before. Now though, I'll have the pleasure of killing you in my true form, and I'll get to do it again! Though, next time I'll have to make sure Nyssa stays awake for the fun." He shoots a third round of bullets, almost immediately followed by a powerful beam of colorful energy. Sans teleports behind Asriel, and a few blasters join him.
"yeah, i'm not really planning on dying. sorry." The blasters fire at Asriel, and they manage to hit. He's pushed back, and some of his fur burns. "hey, papyrus, i know you can hear me!" Some more bones appear around Sans, and they shoot at Asriel.
"What are you doing? Calling out to your brother? No one will answer!" Asriel creates swords and blocks the bones with them. He then flies at Sans and slashes at him. Sans dodges a few of the strikes, then teleports back, out of Asriel's reach.
"well, let's agree to disagree. there are a lot of monsters in there, but if i pull out a few of them then i bet your power will crumble." Sans dodges some star bullets, and then teleports away from the explosions.
"They won't hear you."
"come on pap, if you don't wake up then i might just go be lazy and never do any work. who'll take care of nyssa, or protect everyone? papyrus, come on!" Sans shouts, and though he only hears Asriel's laughter in response, he feels a tug on his soul, and he smiles. "you can get out pap! and hey, maybe bring dad with you while you're at it. the old man has had a long enough break from everything, he doesn't get another one." Four blasters surround Asriel and fire instantly. He drops to the ground and avoids the attack.
"Cry and cry for your brother, but nothing is going to change!" A barrage of stars and fire shoot at Sans, forcing him to teleport over and over to avoid the attacks.
"pap! if you can hear me then i kinda need you to do something! anything! papyrus! d-dad! heck, i'll take a response from tori or undyne, or anyone! please, wake up!" He shoots bones at Asriel, but he can feel his energy quickly disappearing. "who knows, i might be joining you for that nap, nyssa."
"You keep calling for help, but nobody comes." Asriel shakes his head. "How pathetic. Looks like this is the end of the smiley trashbag."
"no, you're wrong. nyssa gave everyone the help to stay strong, and i can keep them fighting to answer me. maybe i'm not the best one for this job, but…" Sans teleports away as Asriel's blaster appears and he shoots. "they're there, and they can hear me."
"You're just delusional."
"MY BROTHER IS… SANS…" Sans freezes for a moment as Papyrus' voice reaches him.
"p-papyrus! pap! h-hey! you can hear me! come on, bro, you can get out of that guy!" Sans holds his hand out, and Asriel's smile disappears. Sans throws his hand to the side, and Asriel flies off. "you got this bro! you're the coolest! don't let this guy hold you back!"
"BROTHER, YOU KNOW YOU'RE… YOU'RE THE ONLY FRIEND I HAD, FOR SO LONG…" Suddenly, the room disappears, and Sans finds himself standing in front of his brother, though Papyrus' face is blurry.
"p-pap… papy. come on now, you're the coolest guy i know. besides, you've got a lot of friends now. like nyssa! we'll both nyssa if you don't come back to us. heh." The blur becomes a bit clearer, and Sans can see a smile on Papyrus' face. "pap, we need you. you've gotta come back and help us fight. you're so amazing bro. you're even fighting against having your soul absorbed. you can go the rest of the way."
"YOU'RE… YOU'RE RIGHT!" The blur completely disappears, and Papyrus looks at Sans. "HOW COULD I EVER THINK OF STOPPING? I HAVE TOO MANY PEOPLE TO PROTECT! TOO MANY FANS TO MAKE HAPPY! BROTHER, I'LL KEEP FIGHTING!" Sans smiles.
"pap, i'm…" Suddenly, Sans is back in front of Asriel. He looks around, but Papyrus is nowhere to be found. He hears the sound of a blaster, and he looks just in time to see the bullets coming at him. He hastily dives to the side, avoiding the hit, but it's almost immediately followed by another round of bullets, then another. He continues to dodge, until suddenly the energy beam shoots at him. The beam is wide, and despite his panicked attempt at dodging, it hits. Sans is thrown back into the wall. He slides down until he's sitting on the floor. "h-heh… looks like i'm… n-not best s-suited for this j-job… s-sorry, nyssa…" He looks at Asriel as another blaster appears. The beam of light lands on Sans' chest, but Sans closes his eyes. He hears the blaster fire. "s-see you in the r-reset…"