Football codes refer to the various forms of football played around the world, each with its own set of rules and characteristics. The most popular codes include association football (commonly known as soccer), rugby union, rugby league, and American football. Each code has unique gameplay, scoring systems, and player positions, catering to different styles and preferences. These codes often have passionate fan bases and are played at both amateur and professional levels. Major competitions, such as the FIFA World Cup for soccer and the Super Bowl for American football, showcase the popularity and cultural significance of these sports globally.