Time Ace Codes -

Star Glider:
Successfully complete the game to unlock the powerful but slow Star Glider ship.

Atlantis, 2015 level:
Get 100% in a repair on the Twin Fighter or any electronic-based repair mini-game after level 5 to unlock level 6, "Atlantis, 2015".

Italy, 1502 level:
Get a "Air Virtuoso" or higher rank on level 11 to unlock level 12, "Atlantis, 2015".