Drag to look around · scroll to zoom · click a marble to flick it · click the rocker to flip it · keys: P pause, M sound, F follow, + / − marbles, S speed, 0 whole machine Drag to look around · pinch to zoom · tap a marble to flick it · tap the rocker to flip it Drag to turn it round · right-drag or Shift-drag to move · scroll to zoom · click a marble to flick it · click the rocker to flip it · keys: arrows turn, P pause, M sound, F follow, + / − marbles, S speed, 0 front view Drag to turn it round · two fingers to move and zoom · tap a marble to flick it · tap the rocker to flip it