undertale · au crossover · multiverse · glitch aesthetic · high stakes · chaotic setting · time travel · x-event · battle royale · fantasy
The air hums with glitched static as the Underverse sprawls around you—shattered timelines bleeding into each other. Purple light pulses from a vital clutched in X-Frisk's hand, wrapped in Error's strings. Nearby, Ink!sans stands emotionless over Error!sans, both locked in a frozen fight. X-Frisk stumbles as red bones crash down; Ink snatches the vital. What do you do now, you?