Load your save, increase your "Mental Strength" stat to 85. It doesn’t do much in the engine. But it feels right.
If you set a value to 128 instead of 127, your save will corrupt. If you edit a retired player’s ID by accident, your Become a Legend career becomes a black hole. Respect the hex limits. If you are booting up PES 2015 in 2025, you aren't looking for competitive fairness. You are looking for a time machine to a simpler era of football gaming.
For those of us who live in mode, PES 2015 is sacred. But it is also broken in the most frustrating ways. Low stamina caps. Stubborn AI teammates. A growth system that seems to actively hate your playstyle.