Hunter - The Reckoning

Get all weapons:
During the game play, push B, use the D-pad and press Up, Left, Down, Right,
then push B, B buttons to get the best version of each weapon.
Note: You can enable only once.

Full weapon damage:
Durng game play press Down, Down, B, Y, Down, Down by using you D-pad.

Sound test:
Durng game play press Left, Left, B or Right, Right, B.

Unlock Nightmare mode in the special features menu:
Finish the game once to get access to the Nightmare Mode.

Unlock Alternate Hunter mode in the special features menu:
Finish the game once to get access to the "Alternate Hunter Mode"

Different ending:
Reascue at over 50 Innocents before returning to the train

Extra lives:
Kill every zombie and creature in a stage, you receive 3 bonus lives.