checked-no =>Unlock All Extras: On the Chapter Select screen, hold [+] and press R R L L [2] [2]. =>Catch and Store Grenades: If a grenade is thrown at you, you can pick it up and throw it again. However, if you press [-] again you will store the grenade away for later. While you can normally only carry six grenades, you can carry many more than that by picking up enemy grenades. =>Veteran Interviews: Beat the game to unlock the veteran interview videos.