Making more complex puzzles with multiple mechanics would have the opposite effect. (gamesetwatch.com)
Each new element is introduced slowly through a series of ever increasingly complex puzzles, teaching you exactly how to use it and helping you discover the myriad of different interactions possible. (snackbar-games.com)
That's not to say the game is easy but it does start off basic and work it's way up to a more complex puzzle game. (gamersinbeta.com)