Complete the End Combat.
Finish the game quicker than the par time of 56 minutes in New York Minute mode.
Complete the game in Hard-Boiled mode.
Kill four enemies with one thrown grenade.
Kill 10 enemies during one use of Bullet Time.
Snipe 10 consecutive enemies without missing a shot.
Complete Part III on any difficulty.
Complete Part II on any difficulty.
Complete Part I on any difficulty.
Kill two enemies during one Shoot Dodge.
Locate the Secret Room during the Tutorial.