FFX - All Controls

Circle » Confirm/Talk/Examine.
X » Cancel/Hold down to walk/Dive.
Triangle » Go to Menu Screen/Show character status window in sphere grid menu/Defend in battle (skip turn).
Square » Scout Blitzball players.
Directional Buttons/Left Analog Stick » Move character/Move cursor in battle.
Right Analog Stick » Used during Lulu's overdrive (rotate clockwise).
L1 » Change characters in menu screen/| |Display switch window in battle.
L2 » Scroll menus back/Scroll down | |switch window in battle.
R1 » Change characters in menu screen/Scroll CTB window up.
R2 » Scroll menus forward/Scroll CTB window down.
L1+R1+L2+R2+Select+Start » Soft Reset (Press the buttons simultaneously).

Note: In the US version of Final Fantasy X, the functions of button X and Circle are switched.