Sans, are you sure it's fine we're not dressing up
We do it every year, bro
They're gonna love it
I know, I know, but I wanted to be a princess this year
You'll always be a princess to me
Ah all right
Let's get this show on the road
Happy Halloween, Underground

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

Don't you love the atmosphere
Isn't it always like this here
I bet this place 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
Candy corn and lots of fluff

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

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

Bro it's getting kind of spooky
I think it 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

Science can't support me
Well how could it, 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

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