Just run and play :)
Right grip: Bring up the main controller, the Sphere Cage.
Right trigger: With the Sphere Cage up, hold down the trigger to trace a sequence of spheres, and let go to execute!
Left grip: Bring up shield, to block your enemy attacks!
A: 1) Back, 2) Center, 3) Front: Ice shot.
B: 1) Back, 2) Side, 3) Front: Fire shot.
C: 1) Up, 2) Center, 3) Down: Light shot.
D: 1) Back, 2) Side, 3) Front, 4) Other side: Heal.
Sorry for the sloppy instructions, we ran out of time :(