The term Battleroid first appeared in Marathon, and the passage in which it was first seen appears to hold the key to the origins of the player. The following excerpt is from a Marathon terminal, originally posted by the AI Tycho, on the level Beware of Low-Flying Defense Drones... In the same terminal (prior to the above passage), Tycho recalls an equally intriguing passage. The following is from the logs of Bernard Strauss, the Marathon's first science director: