: Use tools like PS2 Save Converter to change file formats (e.g., converting .max to .psu ) to ensure they are recognized by your transfer software.

Using a hex editor or Cheat Engine, you can modify:

To get the P.R.L. 412, you must beat Professional difficulty. This is a separate save file you create when starting a New Game. Do not overwrite your Normal mode clear data. Use a different slot. If you beat Professional and accidentally saved over your Normal file, you lose your easy-mode Mercenaries unlocks.

Beating the game and reloading a "Cleared" save file (Round 2 or higher) unlocks specific rewards and modes:

| Unlockable | Requirement stored in save | |------------|----------------------------| | Chicago Typewriter | Complete Assignment Ada | | Handcannon | Get 5 stars with all characters on all Mercs stages | | PRL 412 | Beat Professional mode (PS2 exclusive to NTSC? Actually PRL available in all PS2 regions) | | Ashley’s Armor | Complete Separate Ways | | Matilda | Main story clear (any difficulty) | | Infinite Launcher | Main story clear (any difficulty) |