this piece was released during the early 2000s and about a week after its release, was expertly described by poopshitter #4 as "the feeling you get when flying through the sky, without any worries or responsibilities.
https://www.youtube.com/channel/UCto92GlgWaFa5Ua1vxVjJ-A

the poopshitters - album 1, song 6

*Don't you dare try to run away from me again, h-human!
*Beside, I have a control gate that will surely prevent you from g-going any further.
*So now, you only have two options.
*One, g-give in your soul. It'll make this mission easier to complete.
*Or two, I'll kill you myself!
*This is for everyone's sake!
*Brace yourself for the impact!!!
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif:
- Bird That Carries You Over A Disproportionately Small Gap/Alphys (Part 1)
- Last Goodbye/Once Upon a Time(Part 2)
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Uh oh... looks like you're gonna get crushed by some mech-
Anyway, instrumentation is heavily inspired by "Amalgam"

underswap - Fortune Favors the Brave (OST 50)

*...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif:
- Heartache (Part 2)
- Bergentruckung
- ASGORE
- Home + Heartache (Part 3)
- Heartache (Part 4)
- Alphys (Part 1)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Toriel swaps with Asgore, definitively. After the empire falls apart, she becomes cold, strict, and menacing to her own people. Now she's living in loneliness. Asriel escapes from her because of her action and how she literally overthrows his father months before he was born.

underswap - Moment of Truth (OST 85)

Yo!

FRISK, are you there?

It's me!

S P I K E
P O R T E R

Arranged by @dashingtoadie-the-sequel and @junnboi-the-fourth

What a Nightmare!

-- AWAITING UPDATE --
Original Description:
>> FREE OR NOT THE SIGNAL IS FRIED 
<< GNICNIW NI NIAP SA EHT SEIROMEM YLF

--

* The Shadow Mantle creates a barrier.

CREATIVE FREEDOM (Original)

* Wait, this whole "nice" schtick was a RUSE?!
* Uh-HAH! 'Course it was!
* Ah, wait a sec'. This music just doesn't feel right.
[Tenna changes the music.]
* Ahhh, MUCH better!
--------------
Technically no longer Tenna's main theme, however it is still being used!

This is based on a draft of Tenna's theme Iya had composed, but I did the arrangement all myself. 

The leitmotifs here will be familiar to most, I think?

Tenna design by Me
Sprites created by Me, @rattpoizonaficianado and @takextracrumbs

Two-Faced Televisor (ft. R.V Pine, lex3x)

Death Grips Exmilitary (Official Mixtape)

RELEASE DATE April 27 2011

Death Grips - Exmilitary - 5 - Takyon (Death Yon)

Credit goes to Toby Fox for releasing this banger in his newsletter which unfortunately won't be used anymore since he cancelled on the stealth mechanic.

deltarune - Chapter 3: Sneaking (Unused)

* This is MY WORLD!!
* This is MY EMPIRE!!
* I was pretty charitable to you, Kris...
* But our mutual agreement has reached an end.
* Goodbye, old friend...
* It's SHOWTIME!
----
Woah... this song got updated? Why?!
... It didn't fit the tone of the battle.
The song is HEAVILY inspired now by a track by @ether-patcher!
Check out their stuff, please! It's good!

Oh yeah, also the song got renamed.
Small Shock reference?!

@kiwiquest did a lot of the heavy lifting.
--

the poopshitters - album 1, song 6

Mayhemical