STEP 15: If the ball falls through the floor, the user has lost. Let's check that condition every 2 seconds!

• From add Interval Event to the very BOTTOM of the program (unindented!).
• In the interval event, find and delete the line that says ····sprite.turn_left(15)¬.
• From add Get y indented inside the interval event.
• Change my_var to ball_off and sprite to ball.

To navigate the page using the TAB key, first press ESC to exit the code editor.