Demolition Man

Extra life:
Pause game play, then press B, Up, R, Y.

Recover health:
Pause game play, then press B, A, R, Down.

3 gas bombs:
Pause game play, then press L, Up, L(2), A, B, Y.

5 grenades:
Pause game play, then press Down, R, A, B.

Body armor:
Pause game play, then press L, A, R, Down.

Pistol:
Pause game play, then press A, R, Up, B, A.

Shotgun:
Pause game play, then press A, R, A, B.

Level skip:
Pause game play, then press Y, A, R, Down

.