"Easy" wasn't that easy. Took me somewhat 15 minutes, and 4 jabs of medicine.
It's a green lizard/ dinosaur/ dragon thing with happy colours, it's called Great Maccau.
It keeps standing on its tail. It can attack you and stop you when you are trying to pull a combination attack.
I find single attacks the most effective.
"intermediate" was quite difficult for me. Took me 20 minutes, and lost one life. (You only have 25 minutes or your quest will fail!!)
It's a blue owl thing called Hororohoruru.
I think it's very beautiful and majestic, but it is very tricky to deal with.
It can make you confused, and can make you drowsy/ sleepy. (When confused, green question marks appear on your head, and you run usually the opposite direction of what you wanted. But you can still drink medicine.) (When drowsy/ sleepy, you have green bubbles on your head, and then you eventually lay down after a period of time. The owl will then crash onto you when you have laid down.)
It has strong winds from it wings. Its roar also makes you cover your ears and stop you.
It has a shiny yellow aura barrier thing that can make you confused-- stay away from this aura barrier thing.
It turns its head quite quickly. So always be prepared to run.
At first, it was difficult to hit it.
But after it is significantly weakened, (when saliva drops from its mouth), it becomes easier to deal with, because the wind pressure/ confuse barriers will occur less frequently.
The bones on its wings are very hard, and sometimes your sword will bounce back.
Aim for the tail and the legs.
Occasionally during an attack combo, I hit its head. The head seems to be the weakest point, but I guess it's too dangerous to aim for the head.
Because it can also blow attacks from its mouth.
"Difficult" I didn't try. I don't think I can win it. I think Hororohoruru was difficult enough for me.