Quarter Life Item Clear Boss Mode with five red stars on all the bosses to unlock.
Unlimited Credits Clear training mode and boss mode with 5 red stars in each section. Get at least two stars in the "Fight All" section.
Unlimited Death Shots Clear training mode with five red stars in each section.
Big Big Bonus Clear original mode without losing any civilians and with a score of 1000,000 points or more.
Bruno Costume Get 70,000 points to play on the "Sin" difficulty in original mode. Get the Bruno costume when a maid comes out of a secret room and hands it to you, and wishes you good luck.
Rogan Costume Play original mode and select "2.0 Bullets" and "Double Score" items from the trunk. Rescue all civilians except for the second person on level 4. Clear the game to enter the bonus room at the end. A Rogan Costume and Infinite Credits will be in the room.
Goldman Costume Clear original mode and the costume will appear in the trunk of the car in the next time you play original mode.
Red Blood Clear the game in original mode.
Unlock Unlimited Credits Clear game with an "A" rank, then increase the credits past 9 until "Free Play" appears in the options screen.
Extras While riding the elevator down, the door will open a couple of times. Shoot all the enemies as quickly and as accurately as possible to get items for original mode.
Fully Unlock House of the Dead 2 Beat the game once on any difficulty. House of the Dead 2 in all of its splendour will now be playable.
Automatic Calibration When turning on the game, make sure only regular controllers are hooked up to the system. Go into any mode like survival mode, and then pause game. Now take out the controllers and plug in the lightguns and your lightgun should be aligned properly.
