GEM CATCHER

This is my first game, and it also serves as a posting test.
The creator is Japanese. I based it on Japanese crane games.
How many gems can you get in 60 seconds? Each time you get one, five will be added to the stage.
Use WASD to move the arm.
The timer starts when you start moving it.
Press SPACE to lower the arm.
Click left and right to move the viewpoint.
Press R to restart when you're done.
It is also available on the Japanese website "unityroom."