Movie viewer option:
Successfully the game under the normal difficulty setting. The "Movie Viewer" option will be unlocked in the configuration menu at the main menu.

Voice select option:
Successfully complete the game under the veteran difficulty setting. The "Voice Select" option will be unlocked in the configuration menu at the main menu.

Desperado difficulty setting:
Successfully complete the game under the veteran difficulty setting.

Lower mech:
Successfully complete the game under the desperado difficulty setting. Press Hatch + Start during game play to lower your mech.

Remove HUD:
Get to the rank of Lieutenant Colonel. Then, press Ignition + Start during game play.

Juggernaut mech:
Get to the rank to Colonel to unlock the Juggernaut VT.

Rapier mech:
Win ten decorations to unlock the Rapier VT.