Undertale Yellow

Saddle up partner, and get ready for an untamed adventure in Undertale Yellow, a fan-made prequel to the classic RPG Undertale. As Yellow, you'll ride into the Underground, a world where humans and monsters collide, but this time, you're armed with a cowboy hat and a trusty gun. Can you survive the dangers of the Underground and make it back to the surface, or will you succumb to its secrets?