@Link Spoiler: The arms Behind the robot, to the left and right, there are sliders. Put B in the water by the sliding piece and push forward to release each arm.
Not sure whether 4 or 5*. I found it difficult to get the torso to rotate 180 degree and become upright and stay there. Never found a reliable method. Tried pulling the draggable out and holding it. If there is a reliable method then 5* for the spectacle.
@ridgerunner The only time I had trouble with the torso coming up was when I pulled the draggable out slowly (so the torso hits it coming up). If I pull it all the way out quickly, the torso always comes up and stays, on ipad or android.
Same game this side, same star that side. The big folding part of Torso sometimes never go up. Otherwise this level is superb!