To purchase the CFA 44 Nosferatu Fighter, you must first beat the game on Hard difficulty (or higher). After beating the game on that setting, you can purchase the plane for $230,000.

To unlock Ace Difficulty, beat the game once through on Expert Difficulty.

To unlock SP GamerPicture, beat the game once through on Ace Difficulty.

Here’s how you unlock new paint schemes. Complete the game once through on Normal mode, and unlock the Estovokian scheme. A third paint scheme can be unlocked by shooting down the enemy aces found only in Expert and Ace difficulty modes.

You can unlock each plane in the game, save the two most powerful, by clearing the game once through on Normal difficulty. The two strongest craft are thereafter unlocked by completing the game on Hard and Expert difficulties.

Below are a list of planes that can be unlocked in Normal difficulty. Simply defeat the mission listed for the corresponding planes.

To unlock a new game feature (called Ace of Aces), simply complete the game on normal difficulty or hard difficulty.

To unlock expert difficulty, complete the game once.

To unlock a new game feature (called New Game SP), simply complete the game once on a difficulty setting of your choice.