Hey for lv 34 this is what you gotta do put the cross and turn it into an x and put it on first! Then but the grey bar on it then stack the balls on it 1 a little left of the center of the bad then one right next to it on the right then but the ball on top of them it will start rolling slowly so put the green thingy in the way so it doesn't fall, if you have any questions send me a shout on my profile.