Pachi Pachi 2 - Playthrough Part 2

I figured out how the spring/winter board works and it's rather tricky. In order to change to season to spring you have to increase the temperature to the maximum by collecting the yellow plus items and for winter you have to do the reverse by going for the blue minus ones. You have to plan around that since some missions are only available in a particular season, which could be a problem since these items constantly change places and introduce a lot of randomness, which is part of the reason I couldn't get them all. The next board is a ghost hunting girl and this one is really complex. In order to damage the ghosts you have to go for the heart spheres, which are only revealed for a limited time once you hit the gong. Not only that, but the pivots randomly appear and disappear making accurate ball drops nearly impossible. This one has at least 3 phases changing a layout every time. Despite my best efforts I ran out of balls for the final phase and couldn't complete the missions there.