To stab things, hold L + Up and attack.
In the room before the first Boss, hit the enemies in this order: 2, 3, 1. In Master Quest, use 3, 1, 2.
Shoot her in the eye when it is red. If you do not, her babies will attack you.
In the castle garden, shoot the left window. A man will throw a bomb at you.
Go to the garden in the castle. Go to the right and look in the window.
Look at the object on Malon's neck.