For the theme for this game has served the old eponymous film hit from the 20s or 30s of the last century. The graphics and the sound are not so bad, and here you have some excellent animations.
As for the feature, this game offers two of them. The first one that I'll briefly describe is called "King Kong Goes Ape Feature". The point is that every time when a wild symbol (King Kong) appears on the third reel then it covers the entire reels. Although it does not look like so, this feature can sometimes be a good pay. I remember at one opportunity, thanks to this feature, on my bet of 0.25 Euro I won more than 60 euros i.e. I had wins greater than 200 x bet. The second feature that you have here is called the "King Kong Smash Feature. Three or more scatter symbols on one pay-line will activate this feature. Then the King Kong is climbing on one of the skyscrapers of New York, from which destroys 3 aircraft. Under each plane it is hidden a certain number of free spins. You have the choice to pick a free spins or one of the three mystery prizes. From my experience, which is not big, it seems to me that it is always a better option to choose free spins because several times so far I knew to choose a mysterious prize but 20 or 30 x bet was the biggest of them.
The last time when I have played this game, for a short time by playing some half hour, I was in plus for about 100 euros and that was by playing with a bet of 0.25 and 0.5 euros per spin. However, for the first time I have tried the King Kong slot game before some 4- 5 years. For King Kong I give 7 out of 10 possible stars.