1. Press the inner button to release the lens catch.
  2. While holding the button, grip the outer edge of the lens and pull downward to remove it.
  3. To insert a new lens, press the button again and slide the inner edge in first.
  4. Push the outer edge into place, then release the button.
  5. Give the lens a gentle tug to make sure it’s locked, and you’re ready to play!