To back up your save data, you can copy the IRMN2000.SAV file to a computer or another PSP memory stick. Make sure to keep the file in the same directory structure ( PSP/SAVEDATA/IRMN2000 ) to ensure compatibility.
Sega implemented a basic checksum in Iron Man 2 . If you use a save editor to artificially inflate your Tech Points to "9999999," the game recognizes the manipulation and deletes the save file upon loading. You need a "Save Proofed" file—one where the checksum has been recalculated and corrected by the modder. iron man 2 psp save data
If the save does not appear, the folder name is incorrect, or the region mismatches. If the game says "Corrupted Data," your PSP might have a different firmware version than the save’s origin. Try updating your PSP’s firmware to 6.60 or 6.61. To back up your save data, you can copy the IRMN2000