These controls are guarded. Press one: a short task asks for a grown-up first. Hold the round button for 3 seconds, then drag the apple into the basket (or tap the apple, then the basket; the keyboard works too). After that all three stay open for 2 minutes.
Start over pressed: 0 times. Save & load pressed: 0 times. Door: locked.
Open for 2 minutes after a pass. It is a speed bump for small children, not security: a determined older child, or anyone who can read the page, can get past it.