Electronic gaming machine and gaming method

An electronic gaming machine comprising:

• a display for displaying a first array of game symbols for playing a game, where the game symbols are arranged in two or more columns and predetermined winning combinations of randomly selected game symbols award prizes to a player,
• vending slots to receive monetary bets, and
• an electronic game controller in electronic communication with the display and the vending slots and adapted to control the display of game symbols on the display, to permit a player to select a number of pay lines depending on the amount of the monetary bet, and to award a prize if any predetermined winning combinations appear in a selected pay line during the game,
• wherein, said electronic game controller causes the display of two or more second arrays of game enhancing elements, said two or more second arrays being associated with said two or more columns of said first array, and
• wherein in response to a trigger event occurring in said two or more columns, said electronic game controller causes said two or more second arrays to each randomly award one or more instances of one or more game enhancing elements, said one or more game enhancing elements associated with one of said two or more second arrays being different than said one or more game enhancing elements associated with others of said two or more second arrays and said game enhancing elements simultaneously modifying one or more subsequent games played on the first array,
• wherein said two or more second arrays comprise five second arrays, a first second array associated with a free game enhancing element, a second array associated with a global free game multiplier game enhancing element, a third second array associated with a wild multiplier game enhancing element, a fourth second array associated with a wild symbol game enhancing element, and a fifth second array associated with a bonus prize game enhancing element.