A gaming machine for displaying a computer-animated reel game is described herein. The gaming machine includes one or more processors programmed to execute an algorithm to display an animated sequence of computer-generated images of the computer-animated reel game on a display device GUI including the steps of initiating a free game selection animation sequence by rendering a free game selection screen including a player selectable free game icon displaying a first game feature notification icon indicating that an appearance of the special symbol may trigger a reveal boost game feature animation sequence, and a player selectable super free game icon displaying an inner symbol notification indicating that a predefined number of inner symbols will be added to the reels and a second game feature notification icon indicating that an appearance of the special symbol always triggers the reveal boost game feature animation sequence.