| Unlockable: | How to Unlock: |
| Blitz Gundam | Found in Phase 3, Chapter 1 in Mission Mode |
| BuCUE/A | Found in Phase 1, Chapter 2 in Mission Mode |
| BuCUE/B | Found in Phase 1, Chapter 2 in Mission Mode |
| Burning Gundam | Found in Phase 5, Chapter 2 in Mission Mode |
| Buster Gundam | Found in Phase 6, Chapter 1 in Mission Mode |
| Calamity Gundam | Found in Phase 2, Chapter 3 in Mission Mode |
| CGUE | Found in Phase 1, Chapter 3 in Mission Mode |
| DINN | Found in Phase 4, Chapter 2 in Mission Mode |
| Duel Gundam Assault Shroud | Found in Phase 4, Chapter 2 in Mission Mode |
| Forbidden Gundam | Found in Phase 2, Chapter 3 in Mission Mode |
| Freedom Gundam | Found in Phase 3, Chapter 3 in Mission Mode |
| GAT-X102 Duel Gundam | Beat Phase 2, Chapter 1 in Mission Mode |
| GAT-X303 Aegis Gundam | Beat Phase 1, Chapter 1 in Mission mode |
| Ginn | Found in Phase 5, Chapter 1 in Mission Mode |
| Ginn (Miguel) | Found in Phase 1, Chapter 1 in Mission Mode |
| GINN Miguel Custom | Beat Phase 1, Chapter 1 in Mission Mode |
| GuAIZ | Found in Phase 1, Chapter 3 in Mission Mode |
| Justice Gundam | Found in Phase 2, Chapter 3 in Mission Mode |
| LaGOWE | Found in Phase 1, Chapter 2 in Mission Mode |
| M1 Astray (Asagi) | Found in Phase 3, Chapter 2 in Mission Mode |
| M1 Astray (Juri) | Found in Phase 5, Chapter 2 in Mission Mode |
| M1 Astray (Mayura) | Found in Phase 5, Chapter 2 in Mission Mode |
| Master Gundam | Found in Phase 5, Chapter 2 in Mission Mode |
| Providence Gundam | Beat at least 20 levels of Survival Mode |
| Raider Gundam | Found in Phase 3, Chapter 3 in Mission Mode |
| Strike Dagger | Found in Phase 2, Chapter 3 in Mission Mode |
| Strike Rouge | Found in Phase 2, Chapter 3 in Mission Mode |
| Tallgeese III | Found in Phase 1, Chapter 3 in Mission Mode (After Beating Mission Mode) |
| Wing Gundam Zero Custom | Found in Phase 4, Chapter 1 in Mission Mode |
| ZnO | Found in Phase 2, Chapter 2 in Mission Mode |
Beat Time Trial mode in under 5 minutes.
Beat 20 levels in Survival mode.
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Gundam Battle Assault 3 Featuring Gundam Seed Items
