How to cut off body parts

The only way you can cut something off is to go up to them and press the 0 button when you have your weapon unequipted. You will bend down and take out a knife and carve out something from the monster.

Alright try this on the rathalos because he leaves his tail wide open when he lands. Its simple to cut off his tail but you will have to attack the tail for quite awhile and the village quests don't have many wyverns that will liove long enough to take off their tails. So simply go on a rathalos quest(in guild hall will make it easier to cut it off)and when he flys up wait for him to come down then get behind him and his tail should uncurl just outside of the gust zone so hit it hard and fast,and other than hitting him when he lands just attack towa rds the back in general during the fight.Keep trying it takes a bit to pull it off.

Get the wyvern down to very low health then start hitting his tail

The first thing that I do when fighting a ratholos or a rathian is to cut off thier tails. When the shoot a fire-ball out of thier mouths, run around them and get 2 or 3 hits to the tail. I have a wolf blade and it takes me about 6 to 8 hits to cut it off. Mabey 10 to 15 for you or less.

Hope that helped!!
Narutofan00000