PIECES OF GASTER vol. 1 | All Gaster Secrets Theories Evidence Explained in Undertale + Deltarune
40:58
Find in video from 10:05Evidence and Theories
PIECES OF GASTER vol. 1 | All Gaster Secrets Theories Evidenc…
656.6K viewsNov 29, 2020
YouTube2 Left Thumbs
Game Theory: Who is W.D. Gaster? (Undertale)
17:25
Find in video from 06:01The Theory of W.D. Gaster
Game Theory: Who is W.D. Gaster? (Undertale)
15.3M viewsFeb 4, 2017
YouTubeThe Game Theorists
PIECES OF GASTER vol. 2 | All Gaster Secrets Theories Evidence Explained in Undertale + Deltarune
43:40
Find in video from 02:45Wing Dins' Easter Egg Theory
PIECES OF GASTER vol. 2 | All Gaster Secrets Theories Evidenc…
508K viewsSep 17, 2021
YouTube2 Left Thumbs
The Secret of W.D. Gaster Revealed! | UNDERTALE ANNIVERSARY ANALYSIS
27:43
The Secret of W.D. Gaster Revealed! | UNDERTALE ANNIVERSARY AN…
83.6K views5 months ago
YouTubeLoreFactsTV
DELTARUNE 67 THEORY: Why Gaster is Green and In Between
34:06
DELTARUNE 67 THEORY: Why Gaster is Green and In Between
235.8K views5 months ago
YouTubeSpookyDood
Game Theory: Gaster FInally UNMASKED! (Deltarune / Undertale Connection)
6:30
Find in video from 06:02Conclusion and Theories
Game Theory: Gaster FInally UNM…
Trailer
4M viewsDec 22, 2018
YouTubeThe Game Theorists
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
16:59
Find in video from 05:08Gaster's Experiment
Game Theory: The Many Sides of W.D. Gaster EXPOSED! (Undertale)
9.9M viewsFeb 18, 2017
YouTubeThe Game Theorists
The TRUTH to Gaster finally revealed! - Undertale & Deltarune
11:42
The TRUTH to Gaster finally revealed! - Undertale & Deltarune
40.7K viewsMar 13, 2021
YouTubeCiblesGD
The lore behind W. D. Gaster's backstory | Undertale/deltarune theory
8:34
The lore behind W. D. Gaster's backstory | Undertale/deltarune th…
134 views4 months ago
YouTubeAimerXo
ALL W.D. GASTER APPEARANCES AND WHY HE IS KEY | Every Easter Egg Explained Undertale and Deltarune
47:18
ALL W.D. GASTER APPEARANCES AND WHY HE IS KEY | Every East…
243.4K views8 months ago
YouTubeLoreFactsTV
The Death of Gaster: Using Literary Analysis to Solve Deltarune
47:35
The Death of Gaster: Using Literary Analysis to Solve Deltarune
69.1K views3 months ago
YouTubeScribble Retrospective
The NEW Gaster Door SOLVES Gaster's Fate! (Deltarune Theory)
15:15
The NEW Gaster Door SOLVES Gaster's Fate! (Deltarune Theory)
30.3K views5 months ago
YouTubeFrutiShade
NEW Gaster Door Sans Connection? (Undertale 10th Anniversary Theory) #undertale #deltarune
0:42
NEW Gaster Door Sans Connection? (Undertale 10th Anni…
1.2M views6 months ago
YouTubeBlizzy
The Ultimate Gaster Theory //Deltarune/Undertale Comic Dub//
2:37
Find in video from 00:13The Mystery of Dr. Winging's Gaster
The Ultimate Gaster Theory //Deltarune/Undertale Comic Dub//
17.5K viewsApr 10, 2023
YouTubeZeFanatic14
What Gaster was REALLY up to...
38:22
What Gaster was REALLY up to...
23.1K views8 months ago
YouTubeOutcast Penguin
Was Gerson married to GASTER!? | Deltarune: Theory Review 5 | Deltarune Theory Review and Analysis
23:59
Was Gerson married to GASTER!? | Deltarune: Theory Review 5 | Delt…
57.7K views5 months ago
YouTubeSpookyDood
THE PHOTOCOPIER THEORY - Deltarune Theory #undertaleanniversary
12:52
THE PHOTOCOPIER THEORY - Deltarune Theory #undertaleanniv…
8.5K views5 months ago
YouTubeTremorox
susie gaster theory
0:10
susie gaster theory
705.7K views5 months ago
YouTubekris dreemurr
ANOTHER YOU (Deltarune Theory & UTDR Analysis)
1:21:49
ANOTHER YOU (Deltarune Theory & UTDR Analysis)
136.5K views4 months ago
YouTubeGaret UTDR
Gaster Noelle SECRET in DELTARUNE? #deltarune #undertale #tobyfox #sans #gaster #noelle #secret
0:27
Gaster Noelle SECRET in DELTARUNE? #deltarune #undert…
81.8K views4 months ago
YouTubeElliotOnline
Explaining ALL LORE in Deltarune Chapters 3 and 4! | Deltarune Chapters 3 and 4: Theory Analysis
1:13:56
Explaining ALL LORE in Deltarune Chapters 3 and 4! | Deltarune Cha…
606K views9 months ago
YouTubeSpookyDood
Reviewing 30 MORE DELTARUNE THEORIES! | Deltarune: Theory Review 6 | Deltarune Theory Analysis
41:27
Reviewing 30 MORE DELTARUNE THEORIES! | Deltarune: Theory R…
79.3K views4 months ago
YouTubeSpookyDood
My LAST Deltarune Theory!? | Deltarune Theory Analysis and Overview
1:08:29
My LAST Deltarune Theory!? | Deltarune Theory Analysis and Ov…
133.3K views6 months ago
YouTubeSpookyDood
The Gaster Gang [ Deltarune Animation ]
0:07
The Gaster Gang [ Deltarune Animation ]
11.4K views1 month ago
YouTubeCloudIsSleeping
NEW Gaster is GREEN Theory in DELTARUNE and Undertale? #deltarune #undertale #sans #tobyfox #gaster
0:29
NEW Gaster is GREEN Theory in DELTARUNE and Undertale? #delt…
313.9K views5 months ago
YouTubeElliotOnline
Why Gaster Matters to Deltarune Part 3!
17:59
Why Gaster Matters to Deltarune Part 3!
290.9K views8 months ago
YouTubeMisty Sparkles
Gaster's Final Secret Revealed | Undertale Theory | UNDERLAB
14:11
Find in video from 10:48Theories and Speculations
Gaster's Final Secret Revealed | Undertale Theory | UNDERLAB
865.6K viewsJan 11, 2017
YouTubeUnderlab
Dr. Gaster's Motives REVEALED | Gaster Fanboy Theory | Deltarune Theory / Video Essay
16:03
Find in video from 00:10Introduction to Dr. Gaster
Dr. Gaster's Motives REVEALED | Gaster Fanboy Theory | Deltarune …
29.1K viewsNov 1, 2023
YouTubeWeaselWeaselW
Is Gaster An Antagonist? - Deltarune & Undertale Discussion/Theory
13:01
Is Gaster An Antagonist? - Deltarune & Undertale Discussion…
84.3K viewsJan 31, 2025
YouTubePlantarc
The Moment Undertale’s Anniversary Broke Me
1:43:54
The Moment Undertale’s Anniversary Broke Me
39.8K views3 months ago
YouTubePaulMcGraw
See more