180+ Best Undertale Quotes Full of Heart & Humor

Undertale is more than just a pixelated indie game—it’s an emotional journey filled with unforgettable characters, choices, and powerful dialogue. From the humorous lines of Sans and Papyrus to the deeply introspective words of Toriel, Asgore, and Flowey, Undertale quotes have resonated with fans across the world. These lines often reflect themes of mercy, determination, love, and consequence, reminding players that even the smallest actions can change everything. Whether inspiring hope, delivering laughs, or breaking the fourth wall, the game’s quotes have become iconic in gaming culture, often shared across platforms like Tumblr, Twitter, and beyond.

Undertale Quotes

“It’s kill or be killed.” – Flowey
“Despite everything, it’s still you.”
“You’re gonna have a bad time.” – Sans
“Friendship is the only way!” – Papyrus
“Stay determined.”
“You feel your sins crawling on your back.”
“It fills you with determination.”
“Let’s just forget all this and go back to being friends.”
“It’s a beautiful day outside…” – Sans
“Don’t kill, and don’t be killed.”

Short Sans Undertale Quotes

“You’re gonna have a bad time.”
“Do you wanna have a bad time?”
“Get dunked on!”
“It’s a beautiful day outside…”
“heya.”
“i’m rootin’ for ya, kid.”
“you’ll never see it coming.”
“Time to break the rules.”
“you dirty brother killer.”
“guess that’s a no, huh?”

Best Undertale Quotes

“Stay determined.”
“You feel like you’re going to have a bad time.”
“It’s just a bad dream… or is it?”
“You idiot.” – Flowey
“The more you distance yourself… the less it hurts.”
“You’re filled with determination.”
“You’re not alone.”
“Be good, alright?” – Toriel
“Love, hope, compassion… that’s what humans have.”
“You think you’re above consequences?”

Papyrus Undertale Quotes

“Nyeh heh heh!”
“I will be the one! I must be the one!”
“I, THE GREAT PAPYRUS…”
“I’ll have lots of friends!”
“You’re blue now!”
“Let’s be friends!”
“I believe in you!”
“I CAN MAKE A PERFECT SPAGHETTI!”
“You’re my friend, and I think you’re neat!”
“I’ll capture a human!”

Undertale Inspirational Quotes

“You are not alone.”
“Stay determined.”
“Even the worst person can change.”
“Kindness always wins.”
“Love is not earned by violence.”
“You can always do the right thing.”
“Mercy is stronger than wrath.”
“Keep pushing forward.”
“Your journey matters.”
“Be good, alright?”

Undertale Temmie Quotes

“hOI! i’m temmie!”
“welcom to da TEM SHOP!”
“temmie needs colleg.”
“temmie LOVES u!”
“hoi!!!”
“u got da moniez?”
“temmie can go to colleg now!!”
“such a cute.”
“temmie armor best armor!”
“temmie want to help!!”

Undertale Determination Quotes

“You’re filled with determination.”
“Stay determined.”
“Determination brings you back.”
“Refuse to give up.”
“Determination is your power.”
“Even when all seems lost…”
“Get up. You have to.”
“Save the world with your heart.”
“Never stop trying.”
“Determination guides you.”

Frisk Undertale Quotes

“…”
“Spare.”
You smiled gently.
You refused to fight.
You hugged them.
You held your ground.
You showed mercy.
You cried silently.
You offered a hand.
You chose love over fear.

Flowey Undertale Quotes

“Howdy! I’m Flowey!”
“You idiot.”
“In this world, it’s kill or be killed.”
“Why are you being so nice to me?”
“Let’s see how this plays out.”
“You made me what I am.”
“I’ve learned your tricks.”
“You really are an idiot.”
“No more resets!”
“This is all just a game to you, isn’t it?”

Iconic Undertale Quotes

“You’re gonna have a bad time.”
“Stay determined.”
“Despite everything, it’s still you.”
“Nyeh heh heh!”
“You idiot.”
“It’s kill or be killed.”
“You feel your sins crawling on your back.”
“Spare.”
“It fills you with determination.”
“Be good, alright?”

Burgerpants Undertale Quotes

“I was 100% invested in this job.”
“I’m 19 years old and I’ve already wasted my entire life.”
“God, why do I always get the freaks?”
“The customer is always right? Ha!”
“I hate my life.”
“Little buddy, you’ve saved me.”
“Don’t ask, just buy.”
“I can’t go to hell. I’m all out of vacation days.”
“I just want to go home and lay down.”
“You need to live a little, little buddy.”

Undertale Quotes – Tumblr Style

“You’re filled with aesthetic determination.”
“In the end, it’s still you.”
“Even the flowers lie.”
“Be kind. Reset with love.”
“Soul glowing in grayscale.”
“Spare them, even when you’re hurting.”
“A pixelated heart can still break.”
“Peace is the bravest route.”
“Quiet rebellion, soft mercy.”
“Monsters wear smiles too.”

Undertale Quotes – Twitter Style

“It’s kill or be killed.”
“Stay determined.”
“You feel your sins crawling…”
“Spare them anyway.”
“Get dunked on.”
“Despite everything, it’s still you.”
“Mercy > Violence.”
“Time to have a bad time.”
“Filled with determination.”
“Be good, alright?”

Top 10 Undertale Quotes

“You’re gonna have a bad time.” – Sans
“Despite everything, it’s still you.”
“It fills you with determination.”
“Nyeh heh heh!” – Papyrus
“You idiot.” – Flowey
“Be good, alright?” – Toriel
“Stay determined.”
“Spare or Fight?”
“I’m not ready yet.” – Asriel
“Kill or be killed.” – Flowey

Asgore Undertale Quotes

“It’s a beautiful day outside…”
“I never wanted power.”
“I just wanted to save everyone.”
“I cannot stop what’s been set in motion.”
“Let us end this, as we should have long ago.”
“I am doing this for them.”
“Even a king can cry.”
“Mercy was never an option… or was it?”
“This war has gone on too long.”
“May you find peace in another life.”

Undertale Quotes – TV Tropes Style

“The Power of Love saves the day.”
“Mercy is a mechanic AND a message.”
“Breaking the fourth wall… and the soul.”
“Pixel feels hit harder than 4K drama.”
“Villains with a redemption arc? Classic.”
“Boss battles with emotions.”
“Tears in 8-bit.”
“Tropes done right.”
“Meta as heck.”
“The player is the real monster.”

Monster Kid Undertale Quotes

“Undyne is SO cool!”
“She’ll beat up all the bad guys!”
“You’re gonna meet her, right?”
“I wish I could be as brave as her.”
“Don’t tell my parents I’m here!”
“You’re kinda awesome!”
“You’re not scared at all!”
“You’re walking that way!? Wow!”
“You’re really cool, kid!”
“Let’s go see Undyne!”

Memorable Undertale Quotes

“Despite everything, it’s still you.”
“You feel like you’re going to have a bad time.”
“Stay determined.”
“Spare. Always.”
“Be good, alright?”
“Friendship is magic and spaghetti.”
“Even the weakest monster has hope.”
“A single act of kindness can change fate.”
“Time to break the rules.”
“In this world… it’s kill or be killed.”

Don’t Give Up’ Undertale Quotes

“Stay determined.”
“You have to keep going.”
“Don’t give up just yet.”
“Even in darkness, there’s light.”
“There’s a reason to go on.”
“Hope is not lost.”
“Keep holding on.”
“You can do this.”
“This isn’t the end.”
“You’ve come too far to quit now.”

Conclusion

The lasting impact of Undertale lies not only in its gameplay but in its memorable and meaningful quotes. These snippets of dialogue continue to inspire, amuse, and move players long after the credits roll. They capture the essence of the game’s heart—its encouragement to choose compassion, reflect on one’s actions, and find strength in adversity. Whether you resonate with the gentle wisdom of Toriel or the sharp wit of Sans, Undertale’s quotes speak to something deeply human. They remind us that even in a world of monsters, kindness and determination can light the way forward.