Uploaded January 2026 | Updated September 2026, 2 weeks ago

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FNF VS Cage of Abyss DEMO for the PC in 2160p Ultra HD.
Xie_sans: gamejolt.com/@Xie_sans

Funniboneman and mp49z recommended I check this out, it’s a super cool mod with some mechanics. The song is a cover, but it’s still fairly recent, made over a year ago for the Undertale AU Cage of Abyss series: Team Karma Official: youtube.com/@TeamKarmaOfficial/playlists

Check out the lore here:
undertale-au-fanon.fandom.com/wiki/Cage_of_Abyss/Ending_Time_Octet

This FNF mod skips all of Chapter 1 (Ending Time Octet), including the incredible Phase 4 Inferno Combust and Phase 5 Collapsed Determination battles — you should definitely watch those, they’re chaotic and amazing.

So, the mod just jumps straight into Chapter 2 (End And Beginning), skipping the part where Observer! Gaster pulled Chara and a bunch of AU Sans and Papyrus to fight in Chapter 1. It also skips Phase 5, the final phase of Chapter 1, where Chara defeats the remaining AU characters, and goes straight to Sans returning as Terminator to battle a higher-level Chara. While the fight is still epic, the battles from Chapter 1 were even more chaotic.

What the mod is based on:
The End And The Beginning - Plan A-1 The Pioneer, The Terminator V2:
youtu.be/pTNCgI5kpi0

Cage of Abyss X Friday Night Funkin' DEMO Download: gamejolt.com/games/CoAXFNF/1042153
Psych Engine 0.6.3: github.com/ShadowMario/FNF-PsychEngine/releases/tag/0.6.3

All Songs from Friday Night Funkin' VS Cage of Abyss Mod Timestamp:
00:00 Tiny message
00:19 1) The Pioneer, The Terminator
00:38 Dialogues
00:52 Sans, The Terminator appears
01:11 Undertale mechanic 1
01:27 Dialogues
01:42 Undertale mechanic 2
01:59 Undertale mechanic 3
02:17 Original Sans fights with the power of the Phase 5 souls
02:48 Undertale mechanic 4
03:06 Cutscene
03:20 Dialogues
03:53 Phase 5 souls
04:25 Undertale mechanic 5
04:42 Ending Dialogues
05:01 Pause Menu
05:09 Retrying one of the undertale mechanics
05:30 Outro - CommunityGame

~Mod Creators for Cage of Abyss below~
策划：@MUF_ziyi
音乐：@Xie_sans @繁星_梦豌--小绿限定
贴图：@jumouren @应该是桂花糕01
谱子：Xie_sans
编程：Xie_sans@一位创作者
结界背景：@594小羊羊

Cage of Abyss (Team Karma) official channel:
youtube.com/@TeamKarmaOfficial

Watch Other videos:
FNF Vs Dusttale Sans & Papyrus | FRIDAY NIGHT DUSTIN':
youtu.be/Epfo6269iek
FNF Indie Cross - Crossed Out (Nightmare: Cuphead Sans Bendy)
youtu.be/nSJD4U1h6qA

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Friday Night Funkin' gameplay @ 1080p 60fps & 4k HD by CommunityGame (2026)
#FridayNightFunkin #FnF #undertale #sans #CommunityGame