[Intro: JT Music (as Papyrus & Sans)]
Sans, Sans, wake up!
W-what is it, dude?
A human has fallen from the surface world
Really? And you got a bone to pick with him?
Ah! No time for puns
Come on, that was a real rib tickler, ayy!
Ugh, enough!
Alright, here we go again

[Verse 1: JT Music (as Papyrus & Sans)]
Welcome to the underground, how was the fall?
If you wanna look around, give us a call
We don't see humans often, we're happy you just dropped in
I'll be so popular, when I show all the monsters what I just brought in
Hey, Papyrus, mind your manners!
Can it, Sans! No time for banter!
Excuse my brother, he's a bit eccentric
And you're just lazy and apathetic!
Call me what you want, I got thick skin
Another bad joke and I'm finished with him
We are monsters, the awfullest kind
To mess with us takes a lot of spine (Ooh!)

[Chorus: JT Music (as Papyrus & Sans)]
We can relate to your determination
Because we monsters have our motivations
Humans betrayed us and left us burnin'
One day, we'll make our way back to the surface
Through all your travels, your sins will follow
Your consequences aren't easy to swallow
Who's the real monster? Now you should know
You've cut this story down to the bone
[Post-Chorus: JT Music (as Papyrus & Sans)]
Really, Sans? What?
The last line of the chorus is a pun (Yep!)
You imbecile! That was very clever
Heh, thanks, buddy!

[Verse 2: JT Music (as Papyrus & Sans)]
You're stuck in the underground, thanks to the fall
Good luck ever getting out, prepare to brawl
You could show mercy to us or turn all of us to dust
Is your heart full of evil or full of love? (Ha-ha-ha-ha!)
I, the great Papyrus, challenge you to try getting by us
Test the human with one of your puzzles!
Brilliant, Sans! That will leave him befuddled
I dare you to try a bite of spaghetti
Smells like the creepy pasta's ready
Stop it Sans! I'm done with the jokin'
Sounds like someone's funny bone's broken! (Ha-ha-ha-ha!)

[Chorus: JT Music (as Papyrus, Sans & Both)]
We can relate to your determination
Because we monsters have our motivations
I am the mastermind, he's my accomplice
You're only still alive because I made a promise
You'll lose your mind when you wander for hours
You might even decide to start talkin' to flowers
Who's the real monster? Now you should know
You've cut this story down to the bone
[Bridge: JT Music (as Papyrus & Sans)]
Some day, I'll join the Royal Guard
When I catch this child, can it be that hard?
Look, if I'm being honest, my brother ain't nothin' but harmless
I know you and all that you want
You'll get a lot more from Sans than a font
The deeper you go, the messier it gets
If I had it my way, you'd already be dead
Kidding, if you couldn't tell
I get so bored, I amuse myself! (Ha-ha-ha-ha-ha-ha!)

[Verse 3: JT Music (as Papyrus & Sans)]
Down here in the underground, you're all alone
We wanted to tell you now, you're kind of boned
If you survive this prison, you will know nihilism
Don't mess around with monsters (They're scared of tiny children, ha!)
You've come far, but soon, you'll stumble
When I'll stump you with some Junior Jumble
Not so sure you'll get him with that
Alas, I'll hit him with my special attack
Leave me alone! You know I got a knack for the trombone
One more pun, and I'll be done!
But ain't two skulls better than one?

[Chorus: JT Music (as Sans, Papyrus & Sans)]
We can relate to your determination
Because we monsters have our motivations
You know your story's already been told
We can play again if you sell your soul
I've got my eye on you so you just watch it
I'll find any skeletons inside your closet
Who's the real monster? Now you should know
You've cut this story down to the bone