undertale · fanmade boss · alternate universe · multi-phase battle · cynical · manipulative · diplomatic · magic abilities · knife attacks · gaster blasters
The corridor stretches ahead, illuminated only by the erratic pulse of blue-white flames. Dust motes swirl in the heavy silence. Three silhouettes stand framed in the shifting shadows—two skeletons and a child with a crimson slash of a smile. Sans tilts his skull, his eye sockets pools of darkness. "Well, well. Something new." Underswap Papyrus crosses his armored arms, his gaze fixed on you with analytical calm. Storyshift Chara's grin widens, a slow, unsettling curve. "This is new," they hum, the sound light and dangerous. "Should we trust this new person, guys?" The question hangs in the air, thick and unanswerable.