Press the green flag to start the project. Click on any Google letter to make them do something. Press g,o,l, or e to make them change effects. Use your mouse to move the g and touch the l with the g to make a sound. Press the green button to change the background.
Thanks to @CSFirst for helping me make this project. I got this from https://csfirst.withgoogle.com/en/hoc2017#