I need help with the boss of the Tower of Hera in The Adventure of Link.I can get it off of the horse no problem but it is hard to attack it,especially with the sword beams knocking me back.It will also get off screen to the point that I have to back up and get hit with sword beams,and then it will go off screen again.Any help would be appreciated and thanks in advance!

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l\/l l\ /
l l l/ / - MDS


Let fear be cast into the hearts of our enemy.
Let them lose all hope and let their heart sink into the unending darkness.
Let them have no will to live.
Let them feel the power of the Sages of Despair!