*Alphys turns off the monitors. You can barely see the white of her lab coat, much less her expression...But she seems to be staring down at something.
Alphys: "I've always known that I'm no Undyne. No Mettaton...No Gaster...." (you)
*You stop in place.
Frisk: "No need to bum yourself out. None of them could've stopped me. You did good, Alphys."
*An empty laugh fills the room.
Alphys: "Ha, good. What good have I ever done? I've made mistakes, abominations, tragedies!... The world would be better off without me."
*...!
Frisk: "Alphys-"
Chara: "That's not true! Even if you're a bundle of mistakes like me...as long as you Care you can still do good!"
Alphys: "We both know that isn't true. Not when our mistakes cost families...lives...innocents."
Chara: "..."
Frisk: '...Chara...what the hell?! You can't just body-'
Chara: 'What should we say?'
Frisk: '...Ugh! Think straight for a moment Chara! There's no point in salvaging her now if the timeline is going to reset again.'
Chara: '...I guess.'
Frisk: 'Give me back my body...now.'
*You clear your throat.
Frisk: "Believe what you want, but we've got you cornered. So-"
Alphys: "Yes. You need one more Monster to move onward...to complete the angel's will...the barrier's will. There's no point in struggling either...with the barrier behind you, nothing short of a god could stop you. So...do it Human...get your final kill!"
Frisk: "..."
*...
Alphys: "W-why are you hesitating? I know you can kill me just like you've killed everyone else! So do it, finish me off!"
Frisk: "...Where's the final Monster Alphys."
Alphys: "W-what does it matter if the Monster changes or not? Whether it's a Froggit or Whimsun or me is i-irrelevant! All that matters is you get that number 1 to 0...right?"
*...Does she not know of the barrier's pickiness?
A case of theft: this story is not rightfully on Amazon; if you spot it, report the violation.
Frisk: '...'
*Are you going to kill her?
Frisk: 'I'm not sure if the Angel would approve of that or not.'
*Better play it safe than sorry.
Frisk: "Mettaton told me you're keeping the monsters sheltered somewhere...bring one of them here and I'll be on my way."
Alphys: "I-i'm not going to do that!"
Frisk: "Alphys, I'm not giving you a choice. Either you bring them to me...or I destroy the underground in my search for them. There's no world in which-"
Alphys: "A-aren't we friends?"
Frisk: "..."
*...?
Alphys: "I-i mean you knew so much about me...so I figured you must've talked to me a lot in the past timelines."
Frisk: "That...isn't inaccurate I suppose."
Alphys: "S-so do a friend a favor!"
*Alphys stumbles to you...is she drunk?
Alphys: "L-let them go! Those monsters...they don't deserve your wrath. They-Ah!"
*Alphys falls to the floor. You walk towards your...friend.
Frisk: "I can't do that Alphys...I'm sorry. But-"
*You nearly fall over as you step onto something...cylindrical?
*You pick it up.
*A empty syringe with remnants of a golden fluid
Frisk: '...DT?'
Frisk: "Alphys what have you-"
*You feel a slimy hand grab onto you, Alphys's form breaks apart into a gooey mess that spreads up your leg.
Frisk: "A-ALPHYS!"
*It wraps around you...you can feel her thoughts. Her fears. Her pain. Her determination to stop you.
Alphys?: "SANS, NOW!"
*A bright light comes from up above. A giant red skull stares down at you. You slip on one of the many syringes on the floor as you try to struggle free...but you don't even know where to begin. What's you and what's Alphys is becoming more and more blurry.
sans: "see ya never kid!"
*Your body is flung into the open skull!
Alphys?: "Come COmE COMe coMe CoME COME!"
*You hold on to the edges of the skull with all you have, you can feel light chipping at your back...not killing you...but trying to suck away something vital.
*DT!
*You attempt to move your arm to your chest...but even that is strenuous.
Frisk: "ALPHYS! What are you doing?! Your body will-"
Alphys?: "BE DESTROYED? ANNIHILATED? SO WHAT?! THIS IS MY RETRIBUTION, THE GOOD I'LL DO TO MAKE UP FOR MY AWFUL. DYING...AND SENDING YOU TO HELL WITH ME!"
*Y-You can feel Alphys pushing you to your end. Are you-
Frisk: 'I'll LIVE! I can't die! Not yet...not after coming this far!'
*You plunge your hand into your chest, ripping something out and tossing it before a white beam crashes into you. Knocking you and Alphys into the skull.
*You hear three words before everything fades to white.
sans: "geeettttttt dunked on!"