It contains two very simple functions: 'Set Time To SlowMo' and 'Set Time To Normal'. Each function simply changes the value of global dilation to serve its respective purpose.
If you look at the solution to the puzzle, it only has two crucial steps:
1. Place the rocks horizontally.
2. Using those rocks, break the sentence SKULL IS DEFEAT.
It took me quite a few minutes to figure this puzzle out, and it was relatively more difficult than the previous levels. Despite how simple the puzzle is, what makes it so challenging?
For example, take a look at this level:
You have this rule called SKULL IS DEFEAT. The DEFEAT block destroys any overlapping object that is associated with the YOU block. In this case, it would destroy BABA.
This means everything would be quite clear to the player on what the puzzle is about. But if everything is so crystal clear, then why are a lot of puzzles in BABA IS YOU so hard and mentally demanding?
If you look at the levels, they have a very minimalistic art style, and most of them require only a few crucial steps to solve the puzzle. Every level contains all the rules that define the puzzle.
You only have these tools through which you can build stuff. Despite the limited tools you have, you can still build a variety of whimsical creations and keep yourself engaged.