Press the green flag to start, full screen is recommended. Click anywhere on the screen to continue to the next step. The autoplay feature was primarily used for bug testing, and I would recommend against using it so you can actually read the numbers on the screen before continuing on.
Top Right - Current unit of measurement shared by all distance numbers on the screen Top Left - What length the whole width of the screen represents Bottom Left - Current timer (somewhat inaccurate due to the nature of Scratch's block coding) Bottom Right - Current time multiplier (1x is real time, 60x is 1 minute per second, 3600x is 1 hour per second, etc)