CreateHairball

CreateHairball is a console command available in all Source games. It requires sv_cheats 1 to work. It was probably made for stress-testing ropes.

It spawns 20 groups of balls (named hair balls) and randomly spawns them near the player. Those individual hair balls spawn 100 ropes randomly distributed in a circle. Those groups will then, a few seconds after spawning, forever spin around in random directions and speeds. Hair balls never de-spawn and will continuously fly around until the map changes.

Confirm:Hair balls don't seem to render properly in Mapbase.