Game Theory: UNDERTALE - Sans's SECRET Identity!
17:28
YouTubeThe Game Theorists
Game Theory: UNDERTALE - Sans's SECRET Identity!
Join the Game Theorists! http://bit.ly/1qV8fd6 Earthbound, The DARK Side of Mother! http://bit.ly/1Kaet6U UNDERTALE Origins: Earthbound Hack on GTLive bit.ly/1T4qbl2 UNDERTALE. You've asked for it. Literally, non-stop since the game was released. And at first, even I was a skeptic, but now I'm an Undertale believer, ESPECIALLY since I've ...
14.2M viewsFeb 9, 2016
Shorts
Game Theory: UNDERTALE - Sans's SECRET Identity! (10th Anniversary)
0:40
1.1K views
Game Theory: UNDERTALE - Sans's SECRET Identity! (10th Anniversary)
Joshtol
Game Theory: UNDERTALE - Sans's SECRET Identity! - Part 2 #usa #fyp #viral #undertale
3:50
4.8K views
Game Theory: UNDERTALE - Sans's SECRET Identity! - Part 2 #usa #fyp #viral
sidneyhartmann
Undertale Gameplay
UNDERTALE Full Gameplay Walkthrough / No Commentary【FULL GAME | All Routes】4K 60FPS Ultra HD
14:58:34
UNDERTALE Full Gameplay Walkthrough / No Commentary【FULL GAME | All Routes】4K 60FPS Ultra HD
YouTubeGamer's Little Playground
12.2K views7 months ago
UNDERTALE Gameplay Walkthrough FULL GAME (4K 60FPS) No Commentary (Pacifist Ending)
6:19:54
UNDERTALE Gameplay Walkthrough FULL GAME (4K 60FPS) No Commentary (Pacifist Ending)
YouTubeShirrako
6.8K views4 months ago
UNDERTALE - Full Game 100% Walkthrough
12:47:34
UNDERTALE - Full Game 100% Walkthrough
YouTubeBeardBear
271.5K views7 months ago
Top videos
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
16:59
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
YouTubeThe Game Theorists
10M viewsFeb 18, 2017
Game Theory: Why I Gave the Pope UNDERTALE!
16:16
Game Theory: Why I Gave the Pope UNDERTALE!
YouTubeThe Game Theorists
4.6M viewsJul 5, 2016
Game Theory: Who is W.D. Gaster? (Undertale)
17:25
Game Theory: Who is W.D. Gaster? (Undertale)
YouTubeThe Game Theorists
15.4M viewsFeb 4, 2017
Undertale Reviews
Undertale: Casual Review!
10:49
Undertale: Casual Review!
YouTubeCasual Reviews
618 views2 months ago
Undertale - Atop the Fourth Wall
1:09:37
Undertale - Atop the Fourth Wall
YouTubeLinkara-AtopTheFourthWall
997 views2 weeks ago
I Finally Played: Undertale (Review)
15:40
I Finally Played: Undertale (Review)
YouTubeThe Patient Gamer
3K viewsJan 1, 2025
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
16:59
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
10M viewsFeb 18, 2017
YouTubeThe Game Theorists
Game Theory: Why I Gave the Pope UNDERTALE!
16:16
Game Theory: Why I Gave the Pope UNDERTALE!
4.6M viewsJul 5, 2016
YouTubeThe Game Theorists
Game Theory: Who is W.D. Gaster? (Undertale)
17:25
Game Theory: Who is W.D. Gaster? (Undertale)
15.4M viewsFeb 4, 2017
YouTubeThe Game Theorists
Game Theory: Gaster's Identity REVEALED! (Undertale)
15:43
Game Theory: Gaster's Identity REVEALED! (Undertale)
8.6M viewsFeb 26, 2017
YouTubeThe Game Theorists
Game Theory: The Undertale / Deltarune Connection FOUND!
7:00
Game Theory: The Undertale / Deltarune Connection FOUND!
Trailer
4.6M viewsDec 22, 2018
YouTubeThe Game Theorists
Game Theory: Gaster FInally UNMASKED! (Deltarune / Undertale Connection)
6:30
Game Theory: Gaster FInally UNMASKED! (Deltarune / Undertale Connection)
Trailer
4M viewsDec 22, 2018
YouTubeThe Game Theorists
10 Unbelievable UNDERTALE Theories That Change Everything! Undertale Theory | UNDERLAB
10:26
10 Unbelievable UNDERTALE Theories That Change Everything! Undertale Theory | UNDERLAB
750.2K viewsAug 17, 2017
YouTubeUnderlab
0:40
Game Theory: UNDERTALE - Sans's SECRET Identity! (10th Anniversary)
1.1K views2 months ago
YouTubeJoshtol
12:51
Undertale Theory: The Psychology of Sans | Gnoggin
1.8M viewsMay 5, 2016
YouTubeLockstin & Gnoggin
3:50
Game Theory: UNDERTALE - Sans's SECRET Identity! - Part 2 #usa #fyp #viral #undertale
4.8K views3 months ago
TikToksidneyhartmann
3:40
Game Theory: UNDERTALE - Sans's SECRET Identity! Part 1 #game #secret #identity #san #undertale
1.5K views3 months ago
TikToktheamaazing.clip
2:38
Game Theory: Revealing Sans's Secret Identity in UNDERTALE
661 views3 months ago
TikToksidneyhartmann
7:57
Game Theory? UNDERTALE - San's REAL secret Identity
1 views1 month ago
YouTubeStraco
17:41
Game Theory: YOU Are The Final Boss Of Deltarune!
3M viewsFeb 3, 2024
YouTubeThe Game Theorists
34:55
The WORST (And Best) Deltarune Theories Explained!
174.3K views3 months ago
YouTubeWhyNotLevin
13:36
Why Sans Vs Ness Isn't Close
149.4K viewsMar 15, 2025
YouTubeTUCKALMIGHTY
4:36
Flowey SAVED Everyone - UNDERTALE Theory
13.2K viewsMar 28, 2025
YouTubeOctaniko
2:48
Exploring Sans's Mysterious Identity in Undertale
47.8K views3 months ago
TikToktheamaazing.clip
10:32
Undertale is a horribly made game
1.8M viewsJul 8, 2024
YouTubeJuniper Dev
13:49
Undertale Remembers
6.2M viewsJan 16, 2017
YouTubeMerg
1:14:53
The Undertale Iceberg Explained - A Deep Dive
3M viewsMar 2, 2021
YouTubesilentchatterbox52
22:44
Game Theory: The Legend of Deltarune is a LIE!
949K views10 months ago
YouTubeThe Game Theorists
13:13
Game Theory: Dear MatPat, I Fixed Your Theory (First Episode Remastered)
4.6M viewsApr 13, 2021
YouTubeThe Game Theorists
16:28
Frisk LV 20: Undertale’s Creepiest Theory EXPLAINED
1.2M views6 months ago
YouTubeWiztale
16:13
Game Theory: The Scariest Game That Doesn't Exist! (Evertale)
4.5M viewsSep 25, 2022
YouTubeThe Game Theorists
0:09
But Hey, That's Just a Theory, A Game Theory!
164.6K viewsOct 1, 2017
YouTubeOoyama Ch.
11:28
What Really Happened To The Six Humans? Undertale Theory | UNDERLAB
2.4M viewsJan 28, 2017
YouTubeUnderlab
10:21
We Finally Know How DELTARUNE Connects To UNDERTALE! Deltarune Theory | UNDERLAB
100.4K views11 months ago
YouTubeUnderlab
10:14
10 Amazing UNDERTALE Secrets You Never Knew About! Undertale Theory | UNDERLAB
563.6K viewsNov 3, 2017
YouTubeUnderlab
See more

Short videos

0:40
Game Theory: UNDERTALE - Sans's SECRET Identity! (10th Anniversary)
1.1K views2 months ago
YouTubeJoshtol
3:50
Game Theory: UNDERTALE - Sans's SECRET Identity! - Part 2 #usa #fyp #viral #undertale
4.8K views3 months ago
TikToksidneyhartmann
3:40
Game Theory: UNDERTALE - Sans's SECRET Identity! Part 1 #game #secret #identity #san
1.5K views3 months ago
TikToktheamaazing.clip
0:23
Chara pushed Frisk underground?! #undertale #theory #game
10.3K views1 month ago
YouTubeLiwich
0:48
Sans Undertale Game Theory
1.1K views4 months ago
YouTubeMediak
2:38
Game Theory: Revealing Sans's Secret Identity in UNDERTALE
661 views3 months ago
TikToksidneyhartmann
0:20
The Scariest Theory About Undertale | LV20
54.3K views2 months ago
YouTubeRemdie
2:48
Exploring Sans's Mysterious Identity in Undertale
47.8K views3 months ago
TikToktheamaazing.clip
0:32
Toriel is the TRUE VILLAIN of Undertale?! 🐐🔪 #undertale #gaming #theory
22.7K views2 weeks ago
YouTubePrushdrewd
2:45
Game Theory: Gaster's Identity REVEALED! (Undertale) Part 4 #fpyシ #game #gaster
1.9K views3 months ago
TikToktheamaazing.clip
0:40
Ness is Sans A Game Theory Past
1.6K views4 months ago
YouTubeDeterminedPulse
0:18
I have a theory who the next character is for ulc #ulc #undertale #theory
113 views2 months ago
YouTubeChaderator
0:18
Deltarune Community’s Theory GENERATOR? #deltarune #undertale #tobyfox
73.1K views2 months ago
YouTubeElliotOnline
0:15
Theory of ch6 #undertale #deltarune #sans
54.4K views4 months ago
YouTubeRoryFox
0:06
ULC:theory of new players #ulc#undertale#mge
9.4K views4 months ago
YouTubeundertale judgement simulator
0:09
the best kris deltarune theory
23.5K views3 months ago
YouTubeFedeUT
0:22
Exploring Game Theory in Popular Franchises
1.4K views3 months ago
TikTokkourasrevenge
1:01
Flowey WILL NEVER be Asriel #theory #undertale #fyp
1.1K views5 months ago
YouTubeShiny Sorlo
0:39
sans's undertale theory #undertale #deltarune #ralsei #tiktok #gaming #gamingnews
725 views3 months ago
TikTokhornsly_uk
0:12
deltarune theories in a nutshell #deltarune #undertale
31.5K views3 months ago
YouTubeFedeUT