Completion bonuses - Successfully complete the game to unlock the "Battle Records", "Bonus EXP Display", "Event Recap", "Sound Room", "Theater", "Toggle Battle Animations" options, and new opening movies.

Hard mode - Successfully complete the game on the Easy or Normal difficulty setting to unlock the Hard difficulty setting.

Maniac mode - Successfully complete the game on the Hard difficulty setting to unlock the Maniac difficulty setting.

Characters - Successfully complete the indicated task to unlock the corresponding character:

Aran: In Part 1: Chapter 3, speak to Aran with Laura.

Calill: In Part 2 Final, view the info conversation.

Devdan: In Part 2: Chapter 3, view the info conversation.

Fiona: In Part 1: Chapter 7, Fiona joins if she survives Part 1: Chapter 6.

Gareth: In Part 4 Final, Gareth joins if he survives Part 3 Final.

Haar: In Part 2: Prologue, speak to Haar with Marcia.
Heather: In Part 2: Chapter 1, speak to Heather with Brom or Nephenee.

In-game reset - While playing the game, press Minus + Plus + Home.

Janaff: In Part 3: Chapter 8, speak to Janaff with Ike or Reyson.

Lehran: In Part 4 Final, Lehran joins after viewing Ike's memory scene on your second time playing the game.

Meg: In Part 1: Chapter 4, view the info conversation.

Muarim: In Part 1: Chapter 7, Muarim joins when Tormod is recruited.

Nasir: In Part 4 Final, Nasir joins if he survived Part 3 Final.

Oliver: In Part 4: Chapter 4, speak to Oliver with Rafiel.

Pelleas: In Part 4: Chapter 2, Pelleas joins if he survived Part 3: Chapter 13 on your second time playing the game.

Renning: In Part 4 Final, view the info conversation.

Stefan: In Part 4: Chapter 3, place Micaiah, Lethe, or Mordecai on the eleventh tile up and first across from the bottom right tile.

Tormod: In Part 1: Chapter 7, speak to Tormod with Sothe.

Ulki: In Part 3: Chapter 8, speak to Ulki with Ike or Reyson.

Vika: In Part 1: Chapter 7, Vika joins when Tormod is recruited.
Volke: In Part 4: Chapter 5, pay Volke 3000G with Bastian or Elincia.
Volug: In Part 1: Chapter 5, view the info conversation.