Indoor soccer or arena soccer (known internationally as indoor football, minifootball, fast football, floorball or showball) is a game derived from association football adapted for play in a walled indoor arena. Indoor soccer, as it is most often known in the United States and Canada, was originally developed in these two countries as a way to play football during the winter months, when snow would make outdoor play difficult. In those countries, areas such as hockey rinks or basketball courts are adapted for indoor soccer play. In other countries the game is played in either indoor or outdoor arenas surrounded by walls, and is referred to by different names (such as fast football (futbol rapido) in Mexico, showbol in South America, and indoor football (futbol indoor) in Spain).