Top 10 Saddest Undertale DeathsGarythesnail I was surprised to see this wasn't a list already, so I figured I'd take action.
The Top Ten
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. - Garythesnail
They way she just doesn't want to die but her body can't go on anymore is just tragic. undertale is definitely a master piece
I WILL NOT DIE! I WILL NOT DIE! I WILL NOT DIE!
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) - Garythesnail
I straight up CRIED for about 10 minutes after seeing his death. I even, in my head, roleplayed it as just ketchup...but the feels of sadness!
Sans is pretty overrated, but his death was still pretty sad. "papyrus...do you want anything? " - Garythesnail
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
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. - Garythesnail
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. - Garythesnail
This one is absolutely the saddest death to me
That look on her face.
This is why you only play the True Pacifist Route. - Martin_Canine
"Y...you...really hate me that much? " - Garythesnail
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.
"This world will live on..."
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. - Garythesnail
I hate killing Lesser Dog in Genocide. It breaks my heart.
Killing dogs is messed up. - Garythesnail
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.
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2. Papyrus (Genocide Route)
3. Asriel Dreemurr (True Pacifist)