
Keep your eye on the sugar cube.
Watch the sugar cube. The cups lift to show where it is, then lower again. Follow the cups as they shuffle. Some steps swap two pairs at once.
Replay rewatches the last shuffle (3 per level). Peek glimpses the cube for a moment.
Play a level and your stars and progress show up here. They are saved on this device, and on every device once you sign in.

Keep your eye on the sugar cube.