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SiIvaGunner April Fool's Day 2026: "AUpril Fool's"

YouTube Music • 798 views • 2 hr 46 min

"Destroying or Creating. This is the reason for a war between us, isn't it?" HOLY FUCKING SHIT. SiIvaGunner's April Fool's Day event for 2026 was absolutely CRAZY. So crazy, in fact, that the event actually broke the record of most videos uploaded to the channel in a single day, previously being held by Beta Mix Day (April Fool's Day 2023)! Applying Undertale AUs to other games is such a great idea, and it was done REALLY well here. Great job, everyone! Regardless, just like last year, I've made a playlist of all the April Fool's Day 2026 rips. This includes not only the event rips, but also the rips leading up to the event, and a hidden rip that involves a wrong musical number. It also includes SiIva's own take on NIMBUS, a Snow Halation megalo. This event made me feel like I was back in the heyday of the Undertale fandom again, and I loved it. If you love Undertale AUs (unlike Error!Sans), this event is DEFINITELY for you. Enjoy!

Grand Metropolis (Sonic Heroes) - Sonic PC Collection

2:47

Ending (JP Version) - F-Zero

1:20

Mini-Game 1 (Short Version) - Pictionary

0:58

That's Me! (Alpha Version) - Baby Baldi's Basics In Adventures with Friends!

0:06

Results A - Super Mario Bros. 35

1:22

Unwelcome School (Steam Version) - Blue Archive

0:56

Curse of IRON PIPE (Beta Mix) - La-Mulana

1:51

MOTHER 3 Love Theme (PAL Version) - MOTHER 3

1:11

Super Mario All Stars SMB7 Overworld

1:51

Ready To Rumble (Trailer Version) - TS!UNDERSWAP

1:40

Rage Against the Machine - UNDERTALE: Halloween Hack

0:59

TENTH LEVEL LOCKDOWN - Undertale Yellow

1:27

Ultimatum (Alternate Cover) - DUSTTALE: I MISS YOU

3:42

Start Menu - UNDERSWAP

0:49

elsourtenoB - Underworld

0:55

name's toriel. - Altertale

1:37

sans date. - Inverted Fate

2:53

What once was - TS!UNDERTALE

1:55

Lethargic Theme - Super Mariofell World

1:51

MOTHERSWAP 3 Strength Theme - MOTHERSWAP 3

1:02

Angel Forest - Last Biblefell III

2:52

Outer Mario Bros. Music - Subspace

1:17

sans! - Underfell

1:15

Route 0 - Pokéshift Scarlet & Sapphire

3:04

Writing Warfare! - Doki Fell Literature Club!

2:55

PAPYRUS. - Tory Fox's UNDERSWAP

1:06

Mice on Rafters - Mineshift

4:35

Painforest - DuckFell

1:30

Locria's Theme - MOTHERSWAP 3

1:42

Jenka-1 f - Outer Story

1:33

Cold Blade - SWAPSPIN

1:08

Polluted Sea - Kirbyfell Fallen Star

3:27

PaPePa - Kasane Teto: Project SWAP 2nd

2:59

Dwarf Planet - Outer!Ecco the Dolphin

1:13

Bonerattler - underfellproject

0:47

Temwhistle - BelowExchange

0:08

TK Rap (Unused Version) - Kongshift!Tiny Kong 64

2:36

Human Affairs - Storyswap Color

0:54

Drifting Through Dream!Ness' Subconscious - DreamBound

2:43

what's up. - Predawns

1:26

D A W N - HELP_Life 2

1:09

Keep Up The Pace! - EVAERDRAD's STORYSPIN

0:51

A False Awakening - DreamBound

1:30

papyrus. - AbsoluteZero's Underswap

1:41

Bloodpath - Horror Knight

1:59

chara. - Storyshift

1:22

papyrus. - UNDERSWAP

0:57

Gegagedi. - TALES FROM OHIO

0:38

Proto Woman's Whistle - Mega Shift 3

0:18

Eterna Station: The Botanical Garden - Outermon Legends: Arceus

4:46

Nyameko - KIRA KIRA KILL!~ (JP Version) - Tory Fox's UNDERSWAP

2:46

Static Outlet - SWAPEVATOR

2:57

Hoovefuzzle (2021 Remaster) - Rewind

0:56

Peaceful Observatory, A Planet in Chaos - Wario Outerland 3

2:05

That's Me. - Swap!Principal of the Thing's Basics in Detention and Learning

0:07

Ringtone - Horror!Impractical Jokers Wheel of Death

0:41

Lampage - IGORSHIFT

2:24

Necessary Tension - Tory Fox's UNDERSWAP

0:54

Unnecessary Tension - ONESPIN

1:13

...h-heya. - Fallen Stars

1:41

Retention - EVAERDRAD's STORYSPIN

2:43

First Blood - Dust!Noid 2: Reclaim the Void

1:43

Head - PopSwap! Prince's Cherry Moonwalker

2:41

Sans Fight - UNDERSWAP

1:01

Sans Fight (My Take) - SwApFell: I Hate You.

1:11

Korobeiniki - Puyo Swap Fever

2:32

Pineapple - Inverted Fate

0:05

Hammer Bros. Approaching (Yellow) - Super Mario Bros. 3 Yellow

2:27

Meditative Practice - Dream Sports Resort

1:23

Donut Perils - Super Mariofell World

1:00

Dogjazz - UNDERSWAP

0:08

Exoplanet G.U.A.R.D.I.A.N. - Outermon Legends: Arceus

4:17

mickey mouse! - Disneytale

1:04

Road to Viridian City: Leaving Pallet Town (Yellow) - Pokémon Yellow Yellow

2:04

Lethargic Theme (FOE Version) - Super Mariofell World

2:30

Knife Fight (Unused) - Turned Tales

0:56

page_not_found - HELP_gle.

1:23

Nyameko X ...The Surface?! - Tory Fox's UNDERSWAP

1:36

Oyasumi... Sayori. - Horror Doki Literature Club!

4:06

back of my mind - deet's swapbots

2:27

Big Robo Glitch - Ink!Mario Paint

1:21

???'s Theme (Updated) - Taletwist

0:31

Prank It Up - Differentopic

2:14

A Good Old Signal - Outer Nikki

1:08

Castle Theme - New Super Mariofell Bros.

1:21

Snowy Town - Tory Fox's UNDERSWAP

1:21

Silent Crystals - Undertoad

3:13

O'Toole's Wrath - Family Guy OnlineFell

0:27

Frask. - Underfail

1:43

Another course down - Super Mariofell World

0:49

Slaughterhouse - Animal Crossing: Horror World

4:04

Giovanni's Theme (Yellow) - Pokémon Yellow Yellow

1:21

Death By Charm (V3.0) - Storyspin

3:06

Land of Ice and Snow - Inverted Fate

3:39

Mr. M, Red Fire - Super Paper Marioswap

1:14

SiIvaGunner April Fool's Day 2026: "AUpril Fool's" · Neo Music