You must use a standard 8MB Memory Card in Slot 1. Progress is tied to a specific "Game Profile," so ensure you save after entering any cheat codes to keep them active.
Whether you are on original hardware or an emulator, managing your profile is crucial to making unlocks permanent. urban reign save data
Save data is stored in virtual memory cards (typically .ps2 files) located in the memcards folder of your PCSX2 directory . You can also use Save States for instant backups, though these do not count as traditional "save data" for sharing. You must use a standard 8MB Memory Card in Slot 1