Patent ID: 7901284

Claim:
A gaming machine having an electronic display, and a game controller arranged to control images displayed on the electronic display, the game controller being arranged to play a game wherein a plurality of symbols are randomly selected and displayed on the electronic display and, if a winning combination results, the gaming machine pays a prize, wherein the displayed images include a first image component which displays basic game features and a second image component that is displayed on the electronic display in response to the first image component corresponding to a winning arrangement of symbols, wherein when displayed on the electronic display the second image component displays non-basic image features that appear superimposed on the first image component and are additional to the basic game features, the second image component being transparent such that, the first image component is visible through the second image component under the control of the game controller, wherein the characteristics of a basic game image over which the second image component is superimposed is changed by the game controller such that the result of a game played on the gaming machine is changed in at least some plays of the game by the second image component.