1. Building a Game with Unity3D

2. changes to example script
var myrigidbody:Rigidbody; // declare a variable of proper type myrigidbody=GetComponent(Rigidbody); // note javascript uses () instead of < > myrigidbody.AddRelativeTorque …  

3. +make a game with unity +brackeys
Unity Basics
make a game - 1
make a game - 2
Make a game- 3
make a game - 3b - camera
Make a game shadows + respawn
make a game - 5a - jumping
make a game quality settings
make a game - 7 – collectibles
make a game animation
many more videos: use the search in the title above