Things You'll Need
Instructions
Play through the game until the party travels back in time to the year 600 A.D. for the second time, and goes on a search for the pieces of the Masamune sword.
Put together your party so that the main character Chrono is either accompanied by Robo and Lucca or Marle and Lucca.
Go to the Denadaro Mountain range and fight the enemies there repeatedly until Lucca and Chrono learn the double tech called "Fire Sword."
Head to the cave at the top of the mountain and tell the children found inside that you are looking for a legendary sword. The children will then transform into monsters and attack the party.
Beat the creatures named "Masa" and "Mune" separately by using normal attacks and they will then combine into one huge monster called Masamune.
Have Chrono and Lucca use the "fire sword" ability on Masamune every turn for maximum damage. Your third character should then use either spells or items to heal the party each turn. Continue this pattern and after a few rounds you will defeat Masamune.