Unlockables

Gaiden Chapters

Chapter 12x Have fewer than 15 characters by the end of Chapter 12
Chapter 17x Have fewer than 15 characters by the end of Chapter 17
Chapter 20x Have fewer than 15 characters by the end of Chapter 20
Chapter 24x Chiki dead and no Falchion
Chapter 6x Have fewer than 15 characters by the end of Chapter 6

Recruiting units

Alan (Paladin) Chapter 16 Visit the village to the left with Marth
Astria (Hero) Chapter 13 Enemy, talk with Midia
Athena (Myrmidon) Chapter 6x Visit the village with Marth
Banutu (Mamkute) Chapter 7 Visit the village with Marth
Beck (Shooter) Chapter 13 Visit the village with Marth
Chainy (Commando) Chapter 16 Enemy, talk with Marth
Chiki (Mamkute) Chapter 19 Enemy, talk with Banutu
Daros (Pirate) Chapter 2 Enemy, talk with Marth
Ellis (Cleric) Chapter 24 Automatically from the start
Est (Pegasus Knight) Chapter 18 Enemy, talk with Marth
Etzel (Sorcerer) Chapter 17x Clear the chapter without killing him
Gato (Sage) Final Chapter Automatically from the start (Only if you didn't go to Chapter 24x)
George (Sniper) Chapter 9 Visit the village with Marth
Gordon (Archer) Last part of tutorial Enemy, talk with Marth (Automatically from the start if you're playing hard mode)
Horus (General) Chapter 12x Clear the chapter without killing him
Hymir (Warrior) Chapter 20x Talk with Marth and complete the chapter
Jake (Shooter) Chapter 11 Enemy, talk with Sheeda, must have visited village where Anna is (In same Chapter)
Kashim (Hunter) Chapter 2 Enemy, talk with Sheeda
Katua (Pegasus Knight) Chapter 14 Enemy, talk with Marth
Lawrence (General) Chapter 20 Enemy, talk with Marth or Sheeda
Linda (Mage) Chapter 11 Visit the village with Marth
Machis (Cavalier) Chapter 4 Enemy, talk with Rena
Maria (Cleric) Chapter 10 Enemy, talk with Marth
Marich (Mage) Chapter 4 Visit the northern village with Marth
Minerva (Dragon Knight) Chaper 10 Enemy, talk with Marth, and must have recruited Maria
Nagi (Mamkute) Chapter 24x Clear the chapter
Navarre (Myrmidon) Chapter 3 Enemy, talk with Sheed
Norne Finish Prologue IV with 4 or less characters in the party.
Norne (Archer) Finish Prologue IV with 4 or less characters in the party.
Paola (Pegasus Knight) Chapter 14 Enemy, talk with Marth
Ricardo (Thief) Chapter 6 Enemy, talk with Marth or Julian
Riff (Priest) Chapter 1 Visit the western village with Marth
Roger (Knight) Chapter 8 Enemy, talk with Sheeda
Samson (Hero) Chapter 16 Visit the village to the right with Marth (Can only recruit either Samson or Alan not both)
Wendel (Sage) Chapter 5 Enemy, talk with Marth or Marich

Sound room and story viewer unlocks

Complete the game.

Sound Room Complete the game.
Story Viewer Complete the game, each individual conversation needs to be viewed in the main game and the chapter completed to have each one show up here.