You can assign a unique memory card file to Tekken 5 so it doesn't share space with other games.
Unlike modern PC games, PS2 games write data in specific "blocks." If you have ever: tekken 5 pcsx2 memory card full
: Find your active card (e.g., Mcd001.ps2 ) in the list. Convert : Click the card and select the Convert option. You can assign a unique memory card file