Restore Health:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y.
Release R, then press A. Hold R, then press X, Y, B, A, Black. Release
R, then press Y. Hold R, then press Back.

Infinite Ammo:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y.
Release R, then press A. Hold R, then press X, Y, B, A, Black. Release
R, then press B. Hold R, then press Back.

Infinite Lives:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y.
Release R, then press A. Hold R, then press X, Y, B, A, Black. Release
R, then press A. Hold R, then press Back.

Infinite Charge:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y.
Release R, then press A. Hold R, then press X, Y, B, A, Black. Release
R, then press X. Hold R, then press Back.

Immortality:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y,
Release  R,  then  press  A.  Hold R, then press X, Y, B, A, Black, Y,
Back.

Unlock All Extras:
     While  playing,  hold  L,  then press A. Hold R, then press X, Y.
Release  R,  then  press  A.  Hold R, then press X, Y, B, A, Black, B,
Back.