Ground

Ground is a surface on Earth, Ground is mainly the floor of worlds made in Kodu Game Lab, Ground can have color and texture and bots mainly stand on it, ground is normally a mixture of minerals, organic matter, gases, liquids, and countless organisms. The Ground is completely flat and thin.

Ground Brush
The Ground Brush is a world option in Kodu Game Lab, The Ground Brush can add and remove ground of a world, The Ground Brush resembles a paintbrush, and has green block-shaped things as paint, it is the sixth option in a world of a Kodu project. The Ground Brush also can grow its size.

Lithosphere
Lithosphere is the outermost shell of a terrestrial-type planet or natural satellite. On Earth, the Lithosphere is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.

Hill Maker
The Hill Maker is a world option in Kodu Game Lab, The Hill Maker can elevate and lower the ground, and make hill-like and mountain-like structures, This structures can grow to a massive size, being each time harder to climb to those structures, holes can be made with the Ground Brush on those. This option can make circular and square structures. The Hill Maker is the seventh world option in a world of a Kodu project. Like the Ground Brush, The Hill Maker also can grow its size.