1. A gaming system comprising: a wager input device for receiving a wager; a display for displaying a wagering game comprised of a plurality of symbols in an array; and a controller operative to: (i) detect receipt of the wager; (ii) activate a play of the wagering game by changing the symbols on the display; (iii) cause the display to display at least one play enhancement image pictorially indicating a pattern; (iv) cause the changing symbols to stop and the display to display a randomly selected outcome of the wagering game; and (v) enhance the randomly selected outcome of the wagering game in response to the at least one play enhancement image on the display by transforming each of a selected plurality of the symbols to a predefined enhance symbol, the predefined enhance symbols forming the pattern on the display.