Speed Demon from ProCogny is a puzzle game that exercises cognitive aspects of shape and color recognition. A variety of shapes and colors are shown. Click on the highlighted shapes to start a level and click only those to get points. Miss one or click the wrong one, and you will lose points. The game starts easy with non-moving shapes and limited colors, but as the complexity of shapes and colors increase it gets harder. On higher levels, the shapes move to make it more challenging. Users can use the settings menu to mute sound, toggle between light and dark backgrounds, and reset scores. The free version comes with Ads, but Subscribers enjoy Ad-free play.