Since in Final Fantasy X the Airship is guided and controlled using a Map, unlike previous Final Fantaies, the only way to gain access to hiddem areas, is by the use of Codes or Coordinates. Each password is required in Captials. This effects the result, whether the pasword will work or not. The password Godhand, is the location of Rikku's Celestial Weapon, Victorious is the location of Rikku's armor, Victorious. Murasame is the password unlocking the location of Auron's Ultimate Weapon, Murasame.

Passwords
Password	Accquired Location
GODHAND	Secret unit under Mushroom Rock Road
VICTORIOUS	Secret location in Besaid Ruins
MURASAME	Another location in Besaid Ruins
Coordinates
Location	Coordinates
Omega Ruins	[X: 67-75 / Y: 33-38]
Sanubia Desert	[X: 12-16 / Y: 41-45]
Besaid Falls	[X: 29-32 / Y: 73-76]
Baaj Temple	[X: 11-16 / Y: 57-63]
Mi'ihen Ruins	[X: 33-36 / Y: 55-60]
Battle Site	[X: 39-43 / Y: 56-60]