Battle Assault 3 Featuring Mobile Suit Gundam SEED Unlockable: Tallgeese III
To Unlock the Tallgeese III beat mission 3-1 then go back and take the bottom with Athrun and you will have to fight the Tallgeese III and finish the mission to get it.
Battle Assault 3 Featuring Mobile Suit Gundam SEED Unlock Providence Gundam
Enter Survival Mode and destroy at least 20 mobile suits.
Battle Assault 3 Featuring Mobile Suit Gundam SEED Unlock Survival Mode
Unlock Survival Mode by clearing Time Trial in five minutes or less.
Battle Assault 3 Featuring Mobile Suit Gundam SEED Unlock Tag Team Mode
Clear all phases and chapters in Mission Mode.
Battle Assault 3 Featuring Mobile Suit Gundam SEED Unlockable: Gundam
* Aegis Gundam: Phase 1, Chapter 1
* Blitz Gundam: Phase 3, Chapter 1
* GAT-X303 Aegis Gundam: Beat Phase 1, Chapter 1
* Buster Gundam: Phase 6, Chapter 1
* Ginn: Phase 5, Chapter 1
* Ginn (Miguel): Phase 1, Chapter 1
* GINN Miguel Custom: Beat Phase 1, Chapter 1
* Wing Gundam Zero Custom: Phase 4, Chapter 1
* BuCUE/A: Phase 1, Chapter 2
* BuCUE/B: Phase 1, Chapter 2
* Burning Gundam: Phase 5, Chapter 2
* DINN: Phase 4, Chapter 2
* Duel Gundam: Phase 1, Chapter 2
* Duel Gundam Assault Shroud: Phase 4, Chapter 2
* Forbidden Gundam: Phase 2, Chapter 3
* Freedom Gundam: Phase 3, Chapter 3
* Tallgeese III: Phase 1, Chapter 3
* Master Gundam: Phase 5, Chapter 2
* Raider Gundam: Phase 3, Chapter 3
* Strike Dagger: Phase 2, Chapter 3
* Strike Rouge: Phase 2, Chapter 3
* Calamity Gundam: Phase 2, Chapter 3
* CGUE: Phase 1, Chapter 3
* GAT-X102 Duel Gundam: Beat Phase 1, Chapter 2
* GuAIZ: Phase 1, Chapter 3
* Justice Gundam: Phase 2, Chapter 3
* LaGOWE: Phase 1, Chapter 2
* M1 Astray (Asagi): Phase 3, Chapter 2
* M1 Astray (Juri): Phase 5, Chapter 2
* M1 Astray (Mayura): Phase 5, Chapter 2
* ZnO: Phase 2, Chapter 2
* Providence Gundam: Beat at least 20 levels of Survival Mode