We need to use the global keyword to make changes to some of our variables inside the event.

• Go to and drag Global Variable into the event, right after the line that defines (def) the event.
• Change the global variable name to score.
• Drag another Global Variable inside the collision event and change the variable to left_count.
• Drag a third Global Variable inside the event and change the variable to down_count.

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