Undertale Yellow has some amazing secrets. Here is a video documenting a few of the ones I've found!

...And yes, that secret is in this video. Croak.

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GAME https://gamejolt.com/games/UndertaleY...
Please play it.

Music
Undertale Yellow OST by MasterSwordRemix
Based on: Undertale & Deltarune OST by Toby Fox / Materia Collective

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