Kangaroo Physics installation steps
1- Make an account on Foof4Rhino.
2- Download the latest version of Kangaroo.
3- Unzip the folder. You may need to right clock on the files in the folder and "unblock them."
4- Copy the files to the "special folders -> component folder" of Grasshopper.
5- Restart Rhino/Grasshopper after installation is complete.
notes: Rhino 6 ships with Kangaroo 2; however, you may still download the latest version.
youtube video comparing Kangaroo version 0.99 with version 2
youtube video demonstrating formfinding with Kangaroo version 2