Undertale二次創作 DISBELIEF (Papyrus's Genocide Route)のPHASE4BGM、Final Chance単品です。YOUTUBEより PHASE1 Interstellar_Retribution sm30155479 PHASE2 MegaloStrikeBack sm31566244 PHASE3 Backbone sm31563816 FULL DISBELIEF OST sm31422140 DISBELIEF (Papyrus's Genocide Route) sm31176061