He is more joyful, enthusiastic, and gets excited easily. He is strong because of his density, and he's a good fighter, and obedient as well, but he may take others' messages too seriously. He also has a tendency to twitch his eyes and mouth and eject sulfur dioxide at random times because of geologic activity, much to the annoyance of others. He often does as Ganymede says. He spins around very often, flies around. He is kind of silly, but he also knows a lot, for he has listened to Jupiter.