the bad thing is that popo has heaps of hp fbut is soooooooooooooooooooooooooooooooo slowwwwwwwwwwwwwwwwwwwwwwwwwwww up if you agree, when he ascends near the enemy base, he shoots his exploding thing and when it explodes, more than 4 sharp things hit the castle. I always put popo at their base and keep using pixies and healing spells on him. By the way, how do you defeat the sky dragon.