Most Enjoyable Game has absorbed the most enjoyable mechanics from other games. A large number of various Easter eggs, secrets and references can pleasantly surprise you. And the goal of the game is to give the player a strong flow of positive emotions and cheerful surprise, because the levels of the game can be passed in completely non-standard ways.
Try to get all the achievements, it's very difficult to do, because only a small percentage of players can find all the secrets of the Most Enjoyable Game, but your game path will be very pleasant and unusual.