Researchers have built a super tiny version of the Pac-Man maze, only one millimeter in diameter, so they could turn microorganisms loose on each other in a microscopic game of death.

The single-celled organisms, called euglena and ciliates, act as Pac-Man while the larger multicellular species, known as rotifers, play the role of the ghosts. Filmmaker Andy Bartley was brought in to help capture the 'game' in all its glory.