Top 10 Strongest Undertale Characters

The Top Ten
1 Sans Sans or Sans the Skeleton is a character in the 2015 RPG Undertale created by Toby Fox. He is a lazy, pun-loving skeleton who is a supporting protagonist in the "pacifist" and "neutral" routes of Undertale, and a heroic antagonist/final boss of the "genocide" route. He is known for his incredibly difficult boss fight, bad puns, and the phrases "geeetttt dunked on!!!" and "you're gonna have a bad time." He is also named after the font "comic sans." Known for also being Ness from the Mother series. (known as Earthbound in Western territories.)

People he's the weakest git good.

In all seriousness, no hate on Sans but he is the weakest UT character. Just check him and it says it in the text. Is he difficult to fight? Yes, but that's NOT what this list is about. He's difficult because his teleport capabilities to dodge when no other monster can do that (or at least no that we know of), our invisibility frames taken away thus taking a damage per frame, and Karmatic Retobution. He still falls to a hit, taking the most damage over any monster. And at the end of the day, can only do one damage. I like that he isn't challenging because he's powerful, but fast and even doing 1 damage, he can make it all add up fast. Anyways, he's still the weakest.

Sans, in my opinion, is basically the hardest boss to encounter in the game. Before skipping this, I have something to say. Yes, sure, True Pacifist bosses are really strong (Omega Flowey and Asriel Dreemurr, for example), and Chara can basically kill you anytime they want, but in game, Sans is the hardest in all means. In Omega Flowey's fight, you have checkpoints, with the help of the 6 souls. Asriel Dreemurr's fight basically blocks inevitable deaths, meaning you cannot die. Sans' fight doesn't do that. There are no checkpoints/no-death policies in his fight. Although Sans is basically the weakest character in-game (less than Monster Kid), he uses Karmic Retribution (or whatever it's called) and basically poisons you throughout his fight, bringing a bit more stress to the player, even in the menu you're not safe from his attacks, with you still getting KR damage (I'm going off-topic here) which NO other boss fight does. Honestly, I'll keep this brief. Although Chara is the true #1, ...more

I'm only voting here because I wanted to say something. This isn't about "Favourite characters". It's about the strongest character. Sans isn't the strongest, example, Frisk/us/Chara can whitsand death determination (I'm not talking about the resets). If you're talking about how he has the Kr/Karma ability, it doesn't matter. He may be difficult but that's different from strength. His karma ability makes it so that his bones don't disappear and makes it so you get poison. Chara Literally killed your game with 230+ 9's... Though... We are able to hack the game, so can Toby...

People may be critisizing those comments about favorite character, but I find it somehow neccessary.
The fans who play Undertale and do the Geno run... They basically FUEL the KR (Karmic Retribution) of Sans, right? The lines he says in game...
"Knowing that one day... its all going to be reset.", "Dirty brother killer", etc., those lines just ADD onto Sans and his power.
Sure, you can disagree with me, like for example... Frisk/Chara comments
But honestly, does Frisk/Chara beat Sans more than the vice versa of this situation? No, huh? Yeah.
So all that I am saying in a brief summary.
The KR is fueled by the LV of the fans of Undertale in game.
The lines add on to his confidence to beat you.
Frisk/Chara die more than vice versa to Sans.
You can add on whatever you want.
This guy is badass, I tell you.

2 Chara 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 player's name, which is Frisk. In the genocidal route (achieved by killing as many monsters as you can without sparing), they appear by the end to destroy the world, which happens regardless of the player's choice or intervention. Due to this, most people see them as a villain.

Chara can erase the world and possesed frisk in the end of the genocide route and her hit on the screen is 234 9's! but I put her below asriel because asriel has unlimited attack.

Obviously one of the most powerful because they brutally murdered everyone and possesed frisk and according to lore killed sans.

Frisk can defeat all monsters at lv1, & easily defeat them in genocide route. At lv 20, frisk can easily kill Flowey. In fact, Flowey knows he's no match & is so afraid of you that he even knows Omega/photoshop form is no use.

Chara… they overpower Frisk's choice when they say "Do not (erase everything)." Frisk can't even bring everything back if he wants & has to strike a deal with Chara to do so. Even with MAX lv, Chara obliterates frisk with infinite damage & past any defense frisk has. Tis a huge mistake bringing out this kid.

Chara
can erase the world and to add on, she is a demon in a body, making her twice as strong. This is because she says that she is the demon in the player' soul and she wants to get rid of the world( Earth and the underworld). So all in all, Chars is the strongest character in undertale.

3 Asriel Dreemurr Asriel Dreemurr is a character from the 2015 game "Undertale". He was created by Toby Fox.

Asriel is the child of King Toriel and Queen Asgore Dreemurr, but he seemingly passed away prior to the games events. His back story is only focused on in the True Pacifist Route, which means the player does not kill a single character. As a young child, he was a close friend of Chara, a human child that fell down into the Underground and was adopted by the Dreemurrs. As Chara died, Asriel carried their lifeless body up to the human world, but was killed, for the humans thought that it was Asriel who killed Chara. ...read more.

Simply because of his infinite defense, attack, and health, he simply is EASILY the most powerful Undertale character, that is, unless you include the annoying dog. Asriel Dreemurr was NOT defeated because of your own determination, he was defeated because he started to FEEL again, and then stopped. Yes, he isn't the HARDEST boss, sans is, but Asriel is CLEARLY the strongest character considering his stats. You can even play the actual game to realize he has these stats. Ofc, his infinite attack might've been not used to it's full potential considering Asriel says he was only using a portion of his power during the fight, and then uses his god of hyperdeath form 100 %. Yes, it doesn't do inf attack like the stats said, but it has to be possible, so Toby probably just did that for the game's purpose.

Overall Asriel Dreemurr is the most powerful character in all of Undertale.

Why you ask? Well let's start of with the fact that Flowey had consumed 6 human souls to become a being of unimaginable power. Now let's add all the monsters in the underground's souls and you have a being that has infinite attack and defense.

Asriel can use every monster in the underground against the player but not to their full extent.

Sure Sans has his gaster blasters and his powerful abilities but the people only consider him to be a hard boss. Sans would be the hardest to fight because Asriel Dreemurr is impossible to destroy.

All and all the Asriel is the most powerful character in Undertale due to having 6 souls and all the monster souls.

Asriel Dreemurr should EASILY be at the top of the list, simply because of all the power he has with those souls. Sure, Sans can dodge almost anything, and Chara and Frisk can completely erase everything, but if you think about it, with all the power that Asriel gets from absorbing every soul in the underground (barring only Frisk's soul, and including all the other human souls, which there are a total of six of), he could easily do either, or even both of those things. Plus, even if he didn't, no matter how many times he gets hit, and who hits him, he doesn't get hurt. So yeah, it peeves me a little that he's in third.

Asriel Dreemur is the most powerful character in undertale, because gamewise and in the undertale canon, He Is shown to be the strongest character in the game. It's said in the game he has enough power to kill an entire village in a few seconds. However, he can be considered the weakest, as well.
At his best, and how we usually see him, he has tremendous power. At his worst, he's a child. However, for this list, he's the strongest. Chara is an honorable mention, but nobody can compare to Asriels power.

4 Frisk

Frisk can be killed and often is killed but Frisk never truly dies, they just come back and try again over, and over. Frisk can RESET EVERYTHING, so Sans stands no chance, Chara can only ERASE the world with Frisk's guidence and Asriel does not seem to have full power over the timeline as if so, why wouldn't he just RESET instantly? He has to kill Frisk over and over to make everyone forget Frisk before he can!

Before someone hates me, this is my opinion and all of the characters above Frisk have their own reasons which are completely valid I am just showing my opinion.
Thanks!

After Chara, Frisk is the strongest. They can respawn & just dodge all monsters attacks. Only one they can't do a thing against is Chara. Chara can overpower their decision to erase the world & stands no chance against them & is unable to dodge infinite damage Chara does to them. Frisk can not undo Chara's erasing & has to strike a deal or forever stay in the void.

Frisk powers

1. Determination (Revive after death)

2. Is A Human (As said in the game, it would take every monster soul in the underground to equal the power of one human)

3. Save files

4. Reset (Frisk's most powerful ability in the game)

5. Exists outside of the game (You are Frisk)

Not even the strongest characters in the game can actually "kill it". While she isn't the most physically strong, she holds an advantage that no one else has. Give a character fire, a spear, anything, they still can't get rid of... Them.

5 Undyne Undyne is a main character in Toby Fox's 2015 RPG, Undertale. She is the heroic fishlike captain of the Royal Guard, who takes it upon herself to protect the monsters of the Underground. Her name is derived from the word "Undine", and is a pun on the word "Undying". Her most loved monsters are her mentor, King Asgore, her best friend, Papyrus, and her love interest, Alphys.

Undyne is proven stronger, than Sans, because San's is just learning his patterns, and can only do one damage, Undyne has more health, & is accurate, Sans can only dodge so well because you hit in the same place every time you attack him Undertale, also frisks "Being able to erase the world," Doesn't count, I only admit that Asriel is stronger because he can control time, therefore, stronger.

Undyne The Undying
Literally the hardest and the most unpredictable enemy (second only to sans), still, very hard in general. Also, she is the only monster to overcome determination (Alphys did say monster soul can't contain determination, but I guess Undyne's was too strong, even stronger than death).

She literally wanted to murder you from the beginning, and if you couple that with the fact that she is made out of pure determination on the genocide path and has very quick attacks, I think we can all agree that she is extremely powerful.

I cast my vote on this one because
1. The power of her DETERMINATION.
2. I still can't beat UtU (Undyne the Undying) on the Genocide run! I rage quit l0l. Now, I'm not a heartless human, I just wanted to experience all routes!

6 Asgore Dreemurr

Asgore took me days to finish I coudn't finish him because I didn't even have butterscotch pie or a single healing item, so I quit, you fight him in every route except pacifist.

He can spew fire everywhere, and he can rapidly change the color of his trident to almost always hit you with it. This makes him very powerful.

Asgore can be super nice or he can be super hardcore and kill you bro, we should put him in the top 2 at best!

This guy...
Really strong, but gets a LOT easier when you learn his attacks.

7 Toriel

Same as Papyrus, she's actually pretty powerful and would be a really hard boss battle if you could die, but you can't because she's just so caring...

Toriel is so forgiving and they are really kind and sweet they are the best!

If Toriel didn't stop attacking us, she would be a pretty hard boss.

Goat Mom!
Don't care, Want her to be with asgore
For some unknown reason

8 Mettaton Mettaton is a character in the popular 2015 RPG game, Undertale. He is a robot with a soul built by Dr. Alphys, and is the sole television star of the underground. Mettaton is a popular character in the fanbase. His notable features include his legs, and his catchphrase "OH YESSSS!"

Mettaton is immortal until you flip their switch, and even when you do, they have that very annoying attack where they throw their soul out (their soul spews out lights which is very hard to dodge).

He is stronger than Undyne because of 3 reasons. 1 He can dance on you and make you have to dodge tons of legs. 2. He has mini versions of himself to help protect him. 3. His standard form is indestructible and his EX form has lots of tricks like bombs thrown at you... legs kicked at you... mini mettatons thrown at you... and even his own power source. I think Undyne is strong... but Mettaton is slightly stronger. I think she should go here and Mettaton should go at number 8. Asgore would go to 7.

His/her normal form is Iindestuctible. He should me at least number 5

9 Papyrus Papyrus is a character from the 2015 game Undertale, made by Toby Fox. He is the Younger brother of Sans the skeleton, royal guard in training, and a sentry in the town of Snowdin. Opposite to his brother, papyrus is active, loud, and full of himself; but in an endearing way. Papyrus means to become ...read more.

Papyrus is an awesome dude, and if I use the theory that Gaster was Papyrus' father, then Gaster must have taught him at least the basic attack moves that he used. Although Papyrus was using his easy attacks in the game,...he's just too cinnamon rolly for the world and uses kindness to make sure Frisk/Chara doesn't get hurt.

Though they aren't truly canon, Disbelief and Revenge imply that Papyrus' true capabilities are stronger than we could ever imagine. He's just too kind to try to kill Frisk

Yay! Papy may seem like a harmless cool dude, he is Sans' brother and using the theory that Gaster is their dad, Gaster may have at least taught him to use maybe some basic moves.

Almost every time I fought him I skipped the battle but I beat him first try on my second family route.

10 Alphys Alphys is an adorably dorky, lab-coat-wearing, bespectacled, yellow-skinned lizard scientist who resides in her lab in Hotland in the critically acclaimed cult classic RPG known as Undertale, wherein she partakes in the daily act of watching insane amounts of anime and having a vast majority of the game's plot-related spoilers attached to her. Plot twists aside, however, she is also well known for creating the fabulous entertainment robot Mettaton, as well as having a massive crush on a young fish woman named Undyne, thus creating one of the most beloved lesbian couples in fiction.

Alpys is just great they always try to impress the player in pacifist route. She is very kind and weird in her own way.

We all know why she is here.

He has created Mettaton give him time for more powerful monsters. ps he made undyne so powerful

She killed flowey