As unknown depths of the oceans, and remain the mystery of the earth's interior. A person picks somewhere in the upper layers, and how you want to know what is hiding in the middle. The hero of the game Cutta'Head found a way to go deep into incredible depth. His invention is a robot in a hat that easily drills earth layers. Its advantage is that it can penetrate any depth. But there are drawbacks - it will not pierce the boulders, but this is just fixable. You will take control and take the hero to unknown depths, collecting minerals.
