Ace Combat Zero: The Belkan War

Unlock ADF-01: Get all supreme ace medals
Unlock F-22A: Win the game once in any difficulty
Unlock X-02: Win the game twice in any difficulty -
Unlock Music Player: Finish Campaign mode once, any difficulty
Unlock Scene Viewer: Finish Campaign mode once, any difficulty
Unlock Free Mission Mode: Finish Campaign Mode once
Unlock The Gauntlet: Beat all major enemy Ace Squadrons

Unlock ADFX-01:
Win campaign mode on any difficulty with all 3 different ace styles

Refill health:
Pause while playing the game, after hold L+R and press Y, Down, A, Up.
If you typed correctly, you will hear a sound