During gameplay, each frame is shown as an autostereogram. For example, if you look at this project's cover image (a Pixel Paddle autostereogram frame), you'll see two paddles and a ball. There's a white background when the "Reduce Flashing" accessibility setting is on and when the "in stereo" in-game setting is off. To view the games as autostereograms, turn the "Reduce Flashing" accessibility setting off and the "in stereo" in-game setting on.