Fly

A Fly is an enemy in Super Meat Boy Forever that Bobs up and down in the air but is otherwise stationary, it can be taken out by most attacks.

Obstacles and level objects in the Super Meat Boy series
Super Meat Boy	The Forest	Saw Blade · Crumbling Block · Fire · Saw Shooter · Spinny Saw
	The Hospital	Needles · Fan · AIDS · Key · Lock Block · Betus · Laser
	The Salt Factory	Salt · Conveyor Belt · Missile Launcher · Moving Platform
	Hell	Lava · Butthole · Portal · Laser Eye · Black Maw · Spikes · Burning Corpse
	Rapture	Repulsor · Button · Switch Block · Burnt Boy · Maggot Pile · Maggot · Oob · 4-Way Missile Launcher · Metal Block
	Other	Bandage · Warp Zone
Super Meat Boy Forever	Chipper Grove	Saw Blade · Bumper Block · Fly · Shroomling · Crumbling Block · Chasey Saw · Wood Block · Spinny Saw
	The Clinic	Glass · Needles · Fan · Betus · Glass Block · Spoop · Spin Switch
	Tetanusville	Barbed Wire · Conveyor Belt · Pillbug · Key · Lock Block · Key Block · Pipe · Punch Wall · Hook · Electric Beam
	The Lab	Orb Launcher · Laser Beam · Nerve Gas · Bomb Block · Appear Block · Reverse Punch · Uppercut Punch · Reverse Gravity · Teleport Punch
	The Other Side	Kill Block · Black Hole · Thwump · Time Master · Wahleeohleeoh · Input Block · Block Punch · Cascade Block · Space Master
	0xDEADBEEF	Portal · Error Box
	Other	Pacifier · Warp Zone
Dr. Fetus' Mean Meat Machine	Tutorial	Saw Blade · Metal Block · Saw Shooter
	The Forest	Spinny Saw
	The Hospital	Spoop · Garbage Block
	Salt Factory	Missile Launcher · Button
	Tetanus	Pillbug · Electric Beam
	Hell	Butthole · Crumbling Block · Lava
	The Lab	Bomb Block
Meat Boy (+ Map Pack)	The Forest	Saw Blade · Crumbling Block · Fire · Saw Shooter
	The Salt Factory	Salt · Salt Blaster · Conveyor Belt · Saw Block · Missile Launcher
	Hell	Lava · Molten Block · Butthole · Black Maw
	Other	Bandaid · Saw Missile Launcher