Start the Ubuntu side and then the Windows side.
Open a new terminal and run the following command:
$ roslaunch sigverse_turtlebot2 teleop_key.launch
Start the [Assets/SIGVerse/SampleScenes/Turtlebot2/Turtlebot2Teleop(.unity)] scene with reference to here.
TurtleBot2 moves when you perform keyboard operations on the teleop_key.launch terminal.
* Check the terminal for details of the operation.
If you want to finish, stop the Unity side and then the ROS side.
Reference Video