4th Minigame tip, try and use up and down combination for the air attack above large groups, or use the spear attack for safe attacks. I last longest by mainly charging around and killing enough skeletons to get hearts off them for the ones i lose.
Oh, and does anyone know a good equip setup for the 3 Headed Dragon? I managed to get down to just the dark head, but he and two of those skull ghost things used instant death attacks on me, and they all hit...