Unlock ALL Wingmen:
Successfully complete the game on Normal difficulty setting.

Unlock Apollo and Starbuck as Wingmen:
At the 'Extras' menu press Down, Down, Left, Down, Down, Up, Right, Right to unlock Apollo and Starbuck as wingmen. If the code has been entered correctly you will hear a Cylon as confirmation.

Mini-series Material-
Enter one of the following codes to unlock an image from the Battlestar Galactica mini series at the extras menu.

At the extras menu press:
Up (3)
Down (3)
Left
Right

At the extras menu press:
Up (2)
Down (2)
Right
Up
Right
Down

At the extras menu press:
Down (4)
Left (4)

At the extras menu, press:
Right (4)
Down (2)
Left (2)

At the extras menu press:
Left
Up
Left (2)
Down
Left
Up
Down

At the extras menu, press:
Up
Left
Up
Right
Up
Left
Up
Right