A method of incorporating a bonus symbol into a plurality of symbols to be displayed in a display of an electronic gaming machine, the display adapted to display at least a selected portion of a plurality of standard symbols, the method including the steps of: determining a number of bonus symbols to be displayed; for each bonus symbol to be displayed, determining a location at which the bonus symbol is to be displayed within the plurality of standard symbols; incorporating a bonus symbol with a corresponding standard symbol for the determined location; whereby the bonus symbol is incorporated into the plurality of symbols without affecting the standard symbol probabilities.