During the play on land, press the following:
100,000 gold: A, X, Y, B, Y, B, X, B(2), A
God mode: A, Y, X(2), Y(2), B, Y, X, A
50 skill points: A, B, Y, X, Y, B(2), Y, B, A
Invincibility: A, Y, X(2), Y(2), B, Y, X, A
Neutral reputation: A, X, Y, X, Y, B(2), Y, B, A