Espacio is based on an old virus that specifically targets MS-DOS operating systems. When it infects a computer, the virus sets a timer for 25 minutes, after which it launches the classic arcade game Pac-Man. Despite not causing any harm while the game is running, if the user terminates the game, the timer halves, gets reset to 12.5 minutes, and the process repeats itself indefinitely. This loop continues until the system halts entirely due to the endless loop of restarts.