US Patent 11386753 Gaming machine and method for providing a feature game

A game controller selects and displays first symbols at display positions on a display device, and triggers play of a series of feature games when the first symbols correspond to a trigger event. During the series of feature games, the game controller selects and displays second symbols at the display positions, reveals a value for each reveal symbol in the second symbols while retaining other symbols in the second symbols, and determines a feature game outcome based on the value revealed fro each reveal symbol and other symbols in the second symbols.