There are two hidden modes in "Confidential mission".
 

SIGHT INVISIBLE MODE

During the "waiting screen " after inserting the coins, you can choose " the sight invisible mode " by shooting CMF logo on the screen.
In this mode the enemies haven't been sighted so you feel the game is a bit different and it gets much more exciting.

 

POINT(S) VISIBLE MODE

When you start the game with pulling the trigger, "the points visible mode " will be started. In this mode, every point will be showed on the screen when you shoot the enemies.
It gives you the hints of getting the high score.

 

LIFE UP ITEM..

Most suit cases are score items, however there are some special attache cases. If you get it, your life level will be up.


MISSION 1 Archeological Museum

MISSION 3 "Agares" Headquarters
 

In addition

If you shoot the Hitmaker's log (See below) during the ending staff roll, you'll see.......