Koan

This game is not terrible. You are in a 3x3 grid of rooms with various objects. Your goal is to break a stone slab.

This is the whole puzzle of the game. There is helpful writing in the four corners.

As David notes in his walkthrough (which gives away the solution up front), he notes that the game is a bit underimplemented, and many responses are misleading.

A koan is a question that beckons you transcend your preconceptions of reality and it's laws.
Considering the game's premise, I deem room exploration a time wasting design error. As for the puzzle on offer, the question and answer are linked, but arriving at the solution is an arbitrary process, mainly because of the lack of interaction with the solution's elements.
The game starts with a great idea that, in irony of it's zen roots, can only bloom under a more focused design.