God mode:
Pause the game. Then hold L and quickly press X, Y, Y, X. Then hold R and quickly press Y, X, X, Y.
Increased damage by weapons:
Pause the game. Then hold L and quickly press White, White, Black. Then hold R and quickly press Black, Black, White.
All campaign missions and planes:
Hold L + R and quickly press X, White, Black, Y, Y, Black, White, X at the main menu.
