Top 10 Saddest Undertale Deaths

I was surprised to see this wasn't a list already, so I figured I'd take action.
The Top Ten
1 Papyrus (Genocide Route)

He asks to spare you, by trying to give you A FREAKING HUG. And you know what you do, you KILL HIM. He even says he still believes in you. That somewhere, deep down, you're still the same. But you aren't, you dirty brother killer. Sans is gonna give you a bad time.

It's horrible. He isn't totally naïve, but he does realize you have something up with you. "They way you shuffle about from place to place, the way your hands are always covered in dusty powder." He knows you have something wrong with you. He knows you are evil. And even though he knows all of this, he still decides to spare you. To give you MERCY. He even wants to give you a HUG. A HUG to someone who's killed over 50 monsters. If you kill him, you are not human. And when you do slash him, right afterwards, he says he still sees hope in you. Now go away, you dirty brother killer.

If there's anybody nice enough to befriend a genocidal maniac and get them on the right path, it's Papyrus. He offers nothing but friendship and guidance to the protagonist and even will refrain from fighting him. You can spare him immediately, but killing him will result in him letting you know he still sees a shred of a good person within you. Even if you halt the route later, killing Papyrus will cause both Undyne and Sans to despise you(more than usual in Undyne's case)

You know what's worse? If you do spare him, he reveals that he was scared. This goes to show you that Papyrus is not a playful kid. He's a skeleton with an understanding and life as deep as Sans, but he prefers to be cheerful and kind. He knows that he's gonna die, but does a last ditch attempt to save himself and the rest of the underground. Now, it's up to you, you dirty genocidal monster.

2 Undyne (Neutral Route)

Jesus, if there's a character who's death is anywhere close as sad as Undyne, It's Papyrus. Sure, she is sort of a... lets say, jerkwad, just to keep it Family-Friendly, but she's only that way to protect her kingdom, family, and friends. I mean, if your family were in danger of DYING, wouldn't you protect them, too? I would protect ANYONE I could from getting hurt. In the end, she just wanted to protect her kind, and you went off and killed her without thinking twice. She tries to stay alive; she doesn't want to die. Nobody does. Neutral could be the worst you could do. Think about Alphys and how she has to suffer through life now, knowing that her best friend and the only one who really cared about her is dead. Jesus, dude.

I accidentally killed lesser dog and greater dog in a run, and what Undyne said about being devastated by their death was saddening.

I'm a huge fan of Undyne and she's definitely my favorite character along with Papyrus. If you decide to kill this hero, she stays determined to live on by thinking of all the people she loves. Her mentor and father figure Asgore, her love interest Alphys, her best friend Papyrus...they're the reason she's fighting, and she refuses to let herself die. As she slowly fades away, she shouts that she can't die because she must protect everyone. Along with the depressing music track that plays with it, it makes it an incredibly sad experience.

I killed Undyne on my first run, convinced that I had too. I never felt more like a total turd killing a character in a video game. I love you, Undyne.

3 Asriel Dreemurr (True Pacifist)

The True Pacifist route is by far the most enjoyable way to play Undertale. You free all the monsters and give them their happy ending-that is, except for Asriel, who's doomed to be trapped in the body of a flower for what seems to be forever. As much as fans hope, there doesn't seem to be a lot of hope for poor Asriel.

He doesn't die, but he might as well have. No matter how we look at him, there's just no more Asriel in Flowey.

I cried so hard at the end of the True Pacifist route. I just couldn't bear leaving him behind.

I cried so hard the day I did pacifist run...

4 Sans (Genocide Route)

The last part where he just asked Papyrus if he wanted food was heartbreaking. He accepted his fate and crawled off screen and died peacefully? sad? I don't know.

I have personally never done genocide, but it is really sad how he walks off, asks papyrus a question, and then joins him in the afterlife.

Oml this death just ripped my heart-- I MEAN SOUL out of me and tore in pieces. His dialogue to Papyrus is just..

Someone get me some tissues...

This has to be my #1, #2 being Undyne (either route) and #3 for Papyrus (Genocide). Sans is overrated, I know, you find him everywhere you type Undertale, but honestly, Genocide deaths have to be heart-wrenching.

Back to Sans...
When you actually BEAT him, you are just like, "OML YES" but deep inside, there is a "glimmer of a good person" (-Sans) part of you that feels BAD. The one guy who can just not STAND being there seeing DUST of his FAMILY just blowing everywhere. Like, honestly. He is bad to the BONE, killing you more than vice versa, but holy cow man, his death just wants you to reset and hug him in a Pacifist run, or just for me... Hope not...

But hope it helped a bit... Yes, Undyne's deaths and quotes... "I won't die" and "This world will live on" (-Undyne in Neutral or Genocide routes)... are #1... ...more

I've never killed him, but I've seen it online. It's heartbreaking. Really hope that was ketchup. Just look at the broken smile.

5 Alphys (Certain Neutral Routes)

To answer your question, she commits suicide off-screen. If you kill Mettaton or Undyne, she says this. " I was just worried I would be too afraid... To tell the truth... That I might run away, or do something... Cowardly." After that, she tells you to leave, and if you come back to the door, it would say that no one would answer it.

It's just really sad to have her let you kill her because she felt guilty...just sad

6 Toriel (All Routes)

I didn't feel anything at all in the genocide route.
But... somehow I feel like I need to vote for this one because you are killing your own mother. Toriel only wanted the best for you, and you struck her down.
I feel like whenever someone is playing Undertale for the first time, this fight really decides what path you take.
I know because I nearly killed her in my first run.

Toriel was the mother figure of the game, and to just kill her! What kind of monster are you if you do that! She even says, "Y- You really hate me that much? Now I see who I was protecting when I was keeping you here... them. Be good... My... Child..."

That look on her face.
This is why you only play the True Pacifist Route.

Even when you kill her, she isn't mad. And then when her soul breaks...

7 Asgore (Neutral Routes)

Asgore is awesome, he is one of my favorite characters, yet no matter what run you do, you see him die tragically. Flowey is just so terrible killing his OWN FATHER in the worst way possible.

By killing Flowey, then going back to Asgore to fight again, you can as usual spare him or kill him. Sparing him is the right thing to do(even though Flowey kills him anyway), but if you spare him after following the pattern I mentioned, he will give you his own soul, thus ending his life. In any route except True Pacifist, Asgore is tragically killed and thus causes devastation in the underground.

It's sad to see Asgore's life taken from him, just as he experiences a glimmer of hope for the first time in decades.

Asgore wanted more than anything to meet Asriel. And then he did, in the worst way possible.

8 Undyne (Genocide Route)

"This world will live on..."

9 Flowey (Genocide Route)

The genocide route is the saddest and worst route you could take, and flowey's death at the end looks so sad, but not as sad as other deaths.

Maybe the genocidal weed deserves to be killed, but at the end of Genocide he realizes he's Asriel and begs you not to kill him. Spoiler alert: you have no choice, and must kill him. In what may be the most brutal hits in the game.

Not that sad. Sure, he might do the Asriel face, but he isn't really Asriel.

That face though...

10 The Dogs (Any Route You Kill Them In)

I hate killing Lesser Dog in Genocide. It breaks my heart.

Killing dogs is messed up.

The Contenders
11 Disbelief Papyrus (Genocide route in Disbelief)

He only wanted to protect his brother... He still gave you another chance after all that...if my sis got harmed I'd be mad to the bone. But THIS. THIS. That is brutal.

12 Muffet's Death (Neutral/Genocide Route)

Not very sad, but if you kill Muffet then a spider will crawl onto the spot where she died and leave a rose. It's kind of sad, really.

13 Mettaton (All Routes)
14 Temmie (All Routes)

Why? They're happy, their song is happy, why did you ruin their life?

15 Papyrus (Neutral)

It's so sad because, if you get his health low enough, Papyrus will spare you. It's impossible to do by accident.

16 Mad Dummy (Genocide)

It was so happy that it finally got to feel alive... and then you just take that right away from it! Now that is just cruel...
Also I just wanna say that this so deserves to be ABOVE a FAN-MADE character, not below.

17 Flowey (Neutral)

No, I'm not talking about Photoshop/Omega Flowey, I'm talking about right after you beat him, right after he turns into his regular flower form, and when you kill him instead of sparing him when you get the chance. Even though he wanted to die, and makes that face when he says "I knew you had it in you," it's still pretty sad if you think about it.

18 So Sorry (Pacifist)
19 Chara (All Routes) Chara is a character in the game Undertale by Toby "Radiation" Fox who is one of the seven people to fall to the Underground prior to the fall of the player character. Their name can be changed by the player and will be assumed as the player character, until the Pacifist Route when Asriel asks for the more.

We never see Chara's death for ourselves, but look at the impact it had on the rest of the Underground! Asriel died fulfilling their final request, the whole kingdom despaired, Asgore and Toriel broke up, causing Asgore to wage war with humanity, which then led to the deaths of six innocent humans. From what we've seen in the tapes, Chara poisoned themself in an attempt to help free the monsters from the Underground, but the plan went wrong, and their sacrifice was all for naught when it only led to the death of Asriel and the devastation of all the monsters in the Underground.
If this isn't tragic, I don't know what is.

20 Snowman (Genocide)
21 Toriel (Any Route)
22 Asgore (Genocide Route) Asgore Dreemurr is a boss monster and the king of the monsters in the 2015 RPG Undertale made by Toby Fox. Asgore is the portrayed main antagonist who plans to acquire seven human souls and use their power to break the barrier that seals the monsters underground . Aspects of his character are hinted more.
23 Asgore (Pascifist)

I don't know if he dies in pacifist but flowey takes his soul so that's kinda mean I blame flowey

24 Frisk (All Routes)
25 Dogi (Dogamy/Dogaressa) (Neutral and Genocide)
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