Successfully perform ten Flash Guards by pressing L+R right before an enemy attacks you, a technique not gone over in the tutorial, in a single session without returning to the title screen
After going to the Flame Altar, check up on Cruxie and learn more about her, Mustafa, and Dreisen from the people of Segram, in one session without leaving the village
After your trip to Kylos and before heading to Ruins Island, check up on friends and other notable characters in Altago City, Shannoa, and Segram, along with catching the Dragon Knights training
Defeat Ghilda Ros without using Flash Guard or HP, SP, or status removal items on Nightmare Difficulty - No Running Slash, Uppercut, or Somersault Skills, see comments about setup