Simple shapes

The first three options in this menu are simple shapes and they are as follows:

• Sphere Collision: This creates a simple sphere collision shape
• Capsule Collision: This creates a simple capsule collision shape
• Box Collision: This creates a simple box collision shape
  

K-DOP shapes

K Discrete Oriented Polytope (K-DOP) shapes are basically bounding volumes. The numbers (10, 18, and 26) represents the K-axis aligned planes.