My First Undertale Playthrough

Currently Playing: Reacting To Everything I Missed in UNDERTALE

LET'S TALK ABOUT GASTER!!! I'm reviewing all things I missed in Undertale as well as some bonus content, and revisiting my old (unhinged) theories. Join me on one last Undertale adventure before our next series begins! THANK YOU to all who have supported this playthrough!!! Stay determined! THE SPREADSHEET: https://docs.google.com/spreadsheets/d/1aH8_LpTqwXsmBdgsUjeo0P0R99YNdn3xSBZra1gqDnQ/edit?pli=1&gid=0#gid=0 Join us LIVE on Twitch for my playthrough! ➼ https://twitch.tv/OnceUponEm Join the Discord! ➼ https://discord.com/invite/jcbackfire Follow me on Twitter! ➼ / https://x.com/onceuponem Follow me on TikTok! ➼ / https://tiktok.com/@OnceUponEm Full VOD Channel! ➼ ‪ @JCbackfireStreams CHAPTERS: 0:00 REVIEWING THE GAME 3:25 Revisiting My Theories! 10:01 Reacting to Bonus Content 15:56 GASTER REACTION 21:03 I Think ____ Is Gaster. 31:44 WINGDINGS (Entry Number 17) 36:21 DELTARUNE REVEAL 38:35 Reacting to the Endings I Missed! 42:55 UNDERTALE YELLOW! 44:23 UNDERTALE: THE MUSICAL! 49:00 Thank you.