This is a possible summary of the text:
The text is a transcript of a video explaining who Dr. W.D. Gaster is and why he is important for Deltarune, a game related to Undertale. The video shows how Gaster is a hidden character in Undertale who was a royal scientist that vanished from existence and left behind clues in the game files, such as his WingDings font, his theme song, and his connection to the number 6. The video also shows how Gaster has a more prominent role in Deltarune, where he seems to be the narrator and the creator of the Dark Worlds, and how he may have influenced characters like Jevil and Spamton, who know that their world is a game. The video also discusses some fan theories and headcanons about Gaster, such as his possible relation to Sans and Papyrus, two skeleton brothers. The video ends by mentioning a mysterious note from the game developer that hints at another family member for the skeletons.
Here are the key facts extracted from the text:
- There is a hidden character in Undertale named Dr. W.D. Gaster who was a royal scientist and fell into his creation, the Core, and vanished from existence.
- Gaster's existence and significance are mostly revealed through hidden files, NPCs, and events that depend on a random number called the "fun value".
- Gaster speaks in all caps WingDings font and has a theme song that plays in some places.
- Gaster has a possible connection to Sans and Papyrus, two skeleton characters who are named after fonts and have similar abilities or features to Gaster.
- Gaster has a prominent presence in Deltarune, a game related to Undertale, where he seems to be aware of the nature of the game world and communicates with the player through Twitter and the game itself.
- Gaster may have influenced or driven mad some characters in Deltarune, such as Jevil and Spamton, who also know about the game world and mention a mysterious Knight.
- Gaster's theme song appears in several places in Deltarune, implying his involvement or relevance to the story.