A gaming console or system including a video display, and a game control processor arranged to control images displayed on the video display. The game control processor is arranged to play a first game displayed on the video display and, if a winning combination results, the console or system pays a prize. The console or system is characterized in that the game control processor includes a dynamic game feature whereby a feature game occurs upon a first trigger condition of the first game, and wherein a second trigger condition influences one or more gameplay aspects of the feature game such as to alter the likelihood of occurrence of at least one possible outcome of a set of possible outcomes of the feature game.