In the world of PS2 emulation (specifically ), the physical PS2 memory card is converted into a single file on your computer.
While "Full Game" usually refers to the game software itself, in the context of a memory card file, it means a card packed with "Clear Data" or 100% saves. You can find these shared by the community on sites like: How to Import Save Files on PCSX2 - Full Guide Mcd001.ps2 Full Game
Here is a comprehensive guide on what this file is, why it is important, and how to use it. In the world of PS2 emulation (specifically ),