How to play Human Bones
Drag and drop the bones pictures from the left side of the screen in the human outlines to the right, on their approximate position.
Then in level 2, the same is done for the skull bones. Drop the bones over the orange dots.
Know the skeleton and skull bones in the human body.
Winning the game rewards +1 Knowledge Level
on planeta42.com website.
The download version(bottom of the page) include an executable file for Windows OS with local levels only.
Here is a gameplay movie on YouTube.