Various cheats
     Press  the  +  button  during a mission. Then enter Up, down, Up,
Down on the Wiimote. Afterwards enter the following code:

Cheat code:                            Effect:
Right, Left, Right, Down, Up, Right    Extra Armor
Up,Right,Left,Down,Down,Up             Invisibility


Airplanes at Wii menu:
     Have  the game in the console at the Wii menu. As soon as you see
the  planes flying in the small box above, click the "Mail" button. If
you  look  closely, there are planes in the gray area while the screen
is changing.

Medals:
     Complete  the indicated task to unlock the corresponding medal in
your Service Record.

Campaign Medal: 
     Complete all levels in Campaign mode.

Bronze Stars: 
     Complete  a  mission without dying. Note: A Sprint Recovery bonus
is acquired with each Bronze Star earned.

Silver Stars: 
     Complete  Campaign mode without dying. A Health Recovery bonus is
acquired with each Silver Star earned.

Oak Leaves: 
     Earn  any  seven  medals  in  Campaign  mode.  A  Health Bonus is
acquired with each Oak Leaf earned.

Wings: 
     Land in designated drop zones.

Weapon Expert: 
     Use each available weapons during a mission.

Marksman Award: 
     Shoot a specific number of people in the head during a mission.

World War II: 
     Earn all of the medals in Campaign mode.

Victory Medal: 
     Unknown.