Buggers and Astronauts, also known as Formics and Astronauts, was a popular game played by children on Earth. It was stated that huge groups of children would play against each other in school corridors. Peter Wiggin would often play Buggers and Astronauts with his brother, Ender. Ender would wear a mask similar to a Formic's face, while Peter would play the human astronaut. The game between the two siblings usually ended with Ender being beaten up by Peter.