It is in the same mod by the same creator and, as the name implies, he replaces Pico. Monster Pico is an additional character to the Monster BF mod. His drowning segment poses is clear references to Corruption/Soul Boyfriend from The Corruption Mod.

Monster Boyfriend is very close to Monster Pico, and it’s entirely possible that they’re dating due to how affectionate they’re seen being with each other in the sketches, but this is probably not the case since Monster Girlfriend is seen deeply admiring Monster Boyfriend’s singing in the main menu background.

Due to this, Monster Boyfriend is on the run from the police with Monster Pico.

Much like the original Monster, Monster Boyfriend eats people.

His game over sequence originally had mouths rested alongside his body. His mouth wasn't always visible, and the black segments of his limbs were a lot sketchier rather than the fully colored in. Monster Boyfriend used to be a lot skinnier when the mod first came out. His eyes and mouth are the only other things lit up in this sequence, being light blue. In Week 5, his regular hat changes into a Santa hat and is wearing Santa clothing, he’s also holding a bell.ĭuring the drowning segment of Terrible Fate, Monster Boyfriend's entire body goes dark, and what appears to be a spiky halo is seen above his head, next to some unknown red object. His t-shirt also is changed to a sweater with the same logo as his old t-shirt. He is much larger, has bloodshot eyes, and his hands and feet are black. Monster Boyfriend looks almost exactly like the original Boyfriend, albeit with a few major differences.

Monster BF is a version of Boyfriend made by FHSister which changes Boyfriend's appearance to make him look more like Monster (otherwise known as Lemon Demon).

Evil boyfriend fnf