Reveal the Map:
Press Left, A, Up, Down, B, A, A, B.

Unlimited Continues:
Press A, Down, Right, A, Down.

Watch all the FMV:
Press Right, A, Left, Left, A, Up, B. All Items - Press B, Right, A, Left, Left, Down, Right, A, A, Left.

Thanks to Revolution reader Jason Beeman!!