The Ending Time Octet Phase 3 ULB is a climactic stage in the fan-made game "Cage of Abyss," inspired by alternate universes like "Undertale: Last Breath." In this phase, players face intense challenges, including unique mechanics and visuals, as part of the storyline titled "The Genocide Ends." It features a battle against Sans, with a focus on strategic gameplay and immersive music, such as the OST "The Genocide Ends"