Collision hull meshes are one of those topics that can get modellers seriously confuzzled to the extent that it often gets overlooked or ignored as a subject. If you're one of those and need help understanding how you should be setting up and using collision hulls during the process of making 3D game objects in Blender then this tutorial is for you. It'll explain the general principles behind collisions and the different ways it can be set up as you work; it's relatively easy once you understand what's going on. Read "Game models, physics, collision hulls & meshes
" and learn another core skill needed for game modding and development.