[Intro/Chorus]
Trick or treat, down the streets of the Underground
Get those sweets to the beats, it's so spooky, look around
We're not scared, but beware, there's so much darkness in the air
It's Halloween tonight for skeletons everywhere
We got our bags of candy, fill them up with sweets and treats
We can't wait to take them home, then it's time to eat
Monsters dressing up tonight as they run around
It's time for a Halloween Underground

[Verse 1]
Don't you love the atmosphere?
Isn't it always likе this here?
I bet this placе is loaded
If you feel it in your bones, then go in

Sans, look at all this candy
I would like a glass of brandy
Sans, we came for the treats
Hey, when you're at Grillby's

Off to Undyne's for spaghetti
If it's better than yours, I'm ready
Maybe she's got lots of sugar
Only if Alphys is with her
Great, Sans, you got us kicked out
How should I have known they were making out?
I'm sure Tem has all the good stuff
Candycorn and lots of fluff

[Chorus]
Trick or treat, down the streets of the Underground
Get those sweets to the beats, it's so spooky, look around
We're not scared, but beware, there's so much darkness in the air
It's Halloween tonight for skeletons everywhere
We got our bags of candy, fill them up with sweets and treats
We can't wait to take them home, then it's time to eat
Monsters dressing up tonight as they run around
It's time for a Halloween Underground

[Verse 2]
Yeah, I'd like those awesome Tem Flakes
And I'll have a Tem Flake milkshake
Do you have those brand new Tem cakes?
I think I'll take a Tem minute break

Sans, we don't have time to relax
Hold on, I need to get my bones waxed
Fine then, I'll go on my own
And for motivation, I'm taking your trombone (hey!)
Bro, it's getting kind of spooky
I think was just Napstablook, see?
There's some candy in this web, but
It is a little sticky

Come on, bro
I gotchu, let's go
Thanks, brother
Now let's get on with the show

Papyrus, we should not be here
But it's the spookiest place yet
Trust me, just don't
Papy! Come back!

Welcome back, boys
The party's just begun
You might have wandered in here
In this timeless world of fun

Trapped inside the vortex
In between the realms of space
Never knowing friends
And your memories erased

Silence can't support me
Well, how couldn't, I'm insane
When you're like me
You can't find peace in the endless pain
Please, don't leave, please, don't go
I really need you right now
Happy Halloween
Until we meet again, pals

[Chorus]
Trick or treat, down the streets of the Underground
Get those sweets to the beats, it's so spooky, look around
We're not scared, but beware, there's so much darkness in the air
It's Halloween tonight for skeletons everywhere
We got our bags of candy, fill them up with sweets and treats
We can't wait to take them home, then it's time to eat
Monsters dressing up tonight as they run around
It's time for a Halloween Underground