Saving PS2 Games to USB Flash Drive: Not Possible Natively

You cannot directly save PS2 games to a USB flash drive.

Why

• PS2 natively supports only memory cards, not USB storage.
• Each game uses unique save formats incompatible with standard USB drives.
• Sony never released official USB save support.

Alternatives

1. Memory Cards: Original/intended method. Find online or at retro stores.
2. PS2 Hard Drive Adapters: Third-party devices for internal HDD saves (can be unreliable).
3. Emulation: On PC, saves go directly to computer's hard drive.

Note: Owning a PS2 disc is legal, but downloading/using ROMs without permission may be illegal in many jurisdictions.