To defeat King Minos, avoid his tail strikes when they appear from the ground by constantly moving or dodging. Wait for him to lower his face. When that happens, attack his face until exposes his belly. Then, attack the belly. Defeat the minions he sends out afterwards and avoid his tail attacks. Dodge his smashing fist shockwave attack. After he slams his fist into the ground, run up to him and press R2 then successfully complete the subsequent quick time event. Attack his belly again, kill another wave of his minions, and avoid more fist attacks until he rears back to yell. Press R1 to hang on to the wall and avoid his screaming attack. Keep attacking his face until he gets stunned and his tongue appears. Press R2 and complete the quick time event to defeat him.