Battle of the Knights of the Tri-blade Reach the story chapter "Battle of the Knights of the Tri-blade."
A Deeper Bond: Lisbeth Complete Lisbeth's side story. "We're going to forge a lot of memories together, whether you like it or not."
A Deeper Bond: Sinon Complete Sinon's side story. "Sinon is an indispensable part of this team, and an important friend."
It's Just Like Old Times Complete a side quest, Extra Quest, or Multiplayer Quest with a party consisting of Kirito and Asuna.
Guys Night Out Complete a side quest, Extra Quest, or Multiplayer quest with a party consisting of Kirito, Klein, and Agil.
Girls Ops Complete a side quest, Extra Quest, or Multiplayer Quest with a party consisting of Silica, Lisbeth, and Leafa.
Being a Solo Player Isn't So Bad Complete a total of 10 side quests, Extra Quests, and/or Multiplayer Quests with a party consisting of any single character.
A Game Where You Can Die Is Too Easy! Have the character you are controlling reach 0 HP and become a Remain Light.
Skill Maniac Learn every possible Sword Skill, Magic Skill, and Special Skill for a single character.