The Fangasu is a ship built around a huge cannon capable of destroying a planet with one shot. It is 1.3 kilometers long. The Fangasu moves considerably slower than other Paranoid ships and this becomes a factor in Paranoid tactics.
NOTE: The Japanese spelling of "Fangasu" can also be rendered as "Fungus" in English. English speaking fans have speculated that this is intended to convey the feeling of horror and contempt that reasonable people should feel towards a weapon of this scale.