Lets start from the beginning:
From Wikipedia: "Pro Evolution Soccer is based on the Winning Eleven 5 game engine. The player animations (than previous versions including ISS2 Pro Evolution) have been measurably improved, with all-new falling, dribbling, and running animations added to an already impressive array of jukes, turns, shots, and passes. The stadiums and crowds are immaculately rendered and stunningly realistic. Flares send smoke spiraling into the heavens, while stadium roofs cast shadows onto the pitch. Multitiered stadiums only add to the spectacle, creating a sense of awe and anticipation that seems about as close to the real thing as possible."
Pro Evolution Soccer is a video game built on pride, the pride that comes from making the most realistic soccer experience one can have within the world of gaming. Pro Evolution Soccer 2010 does not disappoint and this year, the voices of fans world-wide have been heard. Based in Japan, Winning Eleven Productions has instituted a host of anticipated changes that make PES 2010 the best yet.
In PES 2010 you’ll find yourself on the largest stage in digital soccer: The Champions League. Imagine you’re in a 1-1 tie in stoppage time against Manchester United. You’ve broken their defense and are sprinting full throttle into a man to man match of wits and reflexes with Edwin van der Sar… Do you have what it takes to punch it in for the win?
The biggest opponent of PES 2010 Is Fifa 2010. This year EA - Sport, The developer Of Fifa 2010, Trying to wake their game more real for playing and to be like PES and from the DEMO i playied it look like they gona give a good fight, But I still think thae PES 2010 is better than Fifa 2010, and still probebly PES 2010 Is Gona Be The Best Soccer Game for 2010.
Enjoy The Demo And Buy The Real Game When It Will Be Relised To Stors...