This version adds a soundtrack to the game that randomly rotates as you play. You can turn down the music if you like. As ever, the sound effects are great. The graphics effects as you near the finish of each puzzle are fun. The images are great. It's a light memory matching challenge for when you're awake but want a simple puzzle game to wind down your head.
The only complaint I have is the subtlety of differences between some of the pieces. For example, sometimes the color saturation is very low, making it annoying to try to figure out what's red, what's green, what's blue etc.
Note that the game, although free, does have a set of nags for your to upgrade. That's only fair.
Overall, very well done and worth playing.