Edit your soccer.ini file in your game directory and add the following
 lines for cheats, then run game as usual:

 AUTO_TACKLING=1                 Enable Auto Tackling
 ONE_ON_ONE=1                    Enable One On One Playmode
 ABSOLUTELY_PERFECT_GOALIES=1    Goalkeeper Becomes Real Good
 CHEAT_EQUAL_TEAM_STATS=1        Equal Team Stats
 AGGRESSIVE_TACKLE_CHEAT=1       Enable Aggressive Tackle Cheat
 PRACTICE_MODE=1                 Enable Practice Mode
 WINDOWED=1                      Run Game In A Window
 CHEAT_UNLOCKED_TEAMS=1          Unlock All Teams
 UNLOCK_TOURNAMENT=1             Tournament Unlocked
 CHEAT_RANDOM_TEAMS=1            Random Teams
 DEMO_MODE=1                     Demo Mode

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 New stadiums:

 Seoul stadium                   Win the International Cup
 Stade de France                 Win the Club Championship

 By Roy @Home, royessers@home.nl