This game is very interesting, exciting and entertaining. I also like this crazy story. You can cut and move almost every stone you encounter. I'm loving cutting stones! Try to find your own path and search for different secrets.
Some levels demand the player to arrive at certain places without a well pre-established way. So one need to cut, drag, push stone cubes/pillars/walls/beams etc. You can find alternative ways to beat levels, for example without cutting anything. There are also boss fight stages, where you should evade or cut down the stones thrown at you.
At last I talk about the achievements, 100% completion is not hard. The collection of all flashing stones in episode 4 is quite challenging. Pay attention to the stones on the top of all blue pillars (no guide or video for this achievement). It took me 10 hours in total to get all the achievements.