character: sans_(undertale), A dramatic medium shot from a slightly low angle featuring Sans from Undertale as a ruthless, godlike secret boss, floating centrally within a collapsing dimension. He is a pure white skeleton with an expressionless, flat mouth and hollow eye sockets, both of which erupt with intense, cold bright blue magical flames. He wears a thick white t-shirt under a blue hooded jacket that covers his torso, paired with pink slippers on his skeletal feet. His right arm is fused with a massive Gaster Blaster dragon skull, which is firing a colossal, blinding blue energy beam forward. His left hand is splayed open, fingers tense as he manipulates the surrounding void. He is enveloped in an overwhelming blue aura with extreme gravitational distortion, bending space-time and shattering reality around him. The background is a scene of total apocalypse: massive stone pillars float upside down, the ceiling collapses in enormous chunks, and the ground is reduced to shattered debris over a growing void. Countless white bones and blue heart fragments float chaotically through the air. The visual style is cel-shaded anime illustration with extremely dramatic, cold lighting and a merciless, dark atmosphere.