Blue Baby's Soul (actually known as ???'s Soul) is a trinket added to The Binding of Isaac: Rebirth. It appear as a little ghost similar to ???. It is unlocked after beating The Dark Room level with ???. Effects Spawns the nearly visible Brother Bobby-like familiar that floats slowly around the room on a zig-zag pattern similar to The Peeper. Fires spectral and homing tears. Retrieved from "https://bindingofisaac.fandom.com/wiki/Blue_Baby%27s_Soul?oldid=127394" Categories: Rebirth Trinkets Community content is available under CC-BY-SA unless otherwise noted.