Monstro

Encounter details

Game ID

20

Environment

Boss / Basement / Burning Basement / challenge / boss challenge / boss rush / Double Trouble / Caves / Catacombs / Flooded Caves / (With Another Monstro, The Duke of Flies, Larry Jr., or Fistula) / Degraded Boss / Depths / Necropolis / Dank Depths / Womb / Utero / Scarred Womb / Cathedral / Chest / Dark Room

Description

Monstro is a boss that can appear in the Basement and the Burning Basement.