Copy the Tetris folder to the C4D installation directory "D:\Program Files\Maxon Cinema 4D 2023\plugins "and restart C4D (please place according to your installation location).
After turning C4D back on, shift+F12 open Command Manager and type Tetris in the search box. Set the shortcut key at the same time.
Drag Tetris into the appropriate position of the C4D window to save the window layout for easy use.
Use steps
Click the plugin button to pop up the Tetris interface.
Left mouse button click on the Tetris interface to start the game:
Arrow key [down] [left] [right] to realize the movement of bricks.
Arrow key [up] to realize the rotation of the brick.