The game was limited to 8 stadiums, down from the 33 available on the PS2. Pro Evolution Soccer 6 Xbox 360 Gameplay UHD [4K60FPS] Pro Evolution Soccer 6 Xbox 360 Gameplay UHD [4K60FPS] YouTube·GAME RECORD TR Pro Evolution Soccer 6 review | Eurogamer.net

To hit release deadlines, Konami had to scale back several options on the newer hardware. The Xbox 360 version lacked:

The ball moved with more natural weight, bounce, and drag than on previous generation systems.

The Legacy of PES 6 on Xbox 360 Released in late 2006, Pro Evolution Soccer 6 (PES 6) remains one of the most critically acclaimed football games of all time. While the PlayStation 2 and PC versions are often cited for their deep customization, the Xbox 360 version holds a unique spot in gaming history.

Players could only change player names, missing out on kit, logo, and boots editing.

The Xbox 360 version featured much sharper player models, fluid animations, and widescreen support.