Super Robot Wars/W/Unit Upgrades
| Root Unit | Upgrade Inheritance | At What Stage(s) | Keep Old Unit? |
|---|---|---|---|
| Blue Earth | Sol Tekkaman Unit-2 | 11 North America | Yes |
| Aphrodite A | Venus A | 14 | No |
| Mazinkaiser | Mazinkaiser (Kaiser Scrander) | 19 | No |
| Mazinkaiser (KS) | Mazinger Z* | NG+ | No |
| Mazinger Z** | 38B | Yes | |
| Wing Zero Custom | Gundam Altron | 44B | Yes |
| Astray Red Frame | Dreadnought Gundam (GuAIZ Head) | 44B | Yes |
| Astray Blue Frame | 45B | Yes | |
| Elijah Custom GINN Kai | 45B | Yes | |
| Gai Custom GINN | 45B | Yes | |
| Dreadnought Gundam (GuAIZ Head) | Dreadnought Gundam | 45B | No |
| Dreadnought Gundam | Dreadnought Gundam (X-Astray) | 46 | No |
| Dreadnought Gundam (X-Astray) | Hyperion Gundam | 52 | Yes |
| Archangel | Eternal | 50B | Yes |
| Strike Gundam | Freedom Gundam | 41 | Yes*** |
| Strike Rouge | 42 | Yes*** | |
| Freedom Gundam | Justice Gundam | 42 | Yes |
| Buster Gundam | 42 | Yes | |
| Blitz Gundam | 42 | Yes | |
| Duel Gundam AS | 51B | Yes | |
| Tekkaman Blade | Tekkaman Aki | Leaves on stage 27. Arrives on stage 34B. | Yes |
| Tekkaman Dead | 42 | Yes | |
| Tekkaman Rapier | 52 | Yes | |
| Tekkaman Evil (guest ally for one stage) | 16 | Yes | |
| GaoGaiGar | Star GaoGaigar | Leaves on stage 18. Arrives on stage 20. | No |
| Star GaoGaiGar | J-Ark | 25 | Yes |
| GaoFighGar | Leaves on stage 27. Arrives on stage 31. | No | |
| GaoFighGar | Genesic GaoGaiGar | Leaves on stage 48. Arrives on stage 49. | No |
| Aestivalis Akito | Aestivalis Gai | 24 | Yes |
| Alstroemeria | Leaves on stage 27. Arrives on stage 46. | ||
| Black Sarana/High Mobility Black Sarana | Leaves on stage 27. Arrives on stage 53. | No | |
| Aestivalis Gai | Aestivalis Custom Gai | Leaves on stage 27. Arrives on stage 31 | No |
| Aestivalis Ryoko | Aestivalis Custom Ryoko | Leaves on stage 27. Arrives on stage 31 | No |
| Aestivalis Hikaru | Aestivalis Custom Hikaru | Leaves on stage 27. Arrives on stage 46 | No |
| Aestivalis Izumi | Aestivalis Custom Izumi | Leaves on stage 27. Arrives on stage 46 | No |
| Nadesico | Nadesico Y-Unit | Stage 22B | No |
| Nadesico Y-Unit | Nadesico B | Leaves on stage 27. Arrives on stage 31. | No |
| Nadesico B | Nadesico C | Stage 46 | No |
| HOME | ReHOME | Leaves on stage 34a. Arrives on stage 43. | No |
| ChouRyuJin/GekiRyuJin | TenRyuJin**** | Leaves on stage 27. Arrives on stage 34. | |
| ARX-7 Arbalest | M9D Falke | 38A | Yes |
| M9 Gernsback (Sousuke)* | NG+ | No | |
| Detonator Orgun | Orgun (Archetype)* | NG+ | No |
| Birdman (Spitfire Mk.II) | E.D.F. Leave-Type Solid Armor | 46 | No |
| Valhawk/Valstork/Valguard | Valzacard | 49 | No |
| Valzacard | Valarm (guest ally for one stage) | ||
| CGUE DEEP Arms (guest ally for one stage) | |||
| Miguel Custom GINN (guest ally for one stage) | |||
| GINN High Maneuver (guest ally for one stage) | |||
| Gunbarrel Dagger (guest ally for one stage) | |||
| Sword Calamity (guest ally for two stages) | |||
| Jean Custom M1 Astray (guest ally for one stage) | |||
| Astray Gold Frame (guest ally for one stage) |
* For Mazinkaiser, upgrades will carry over in NG+ to the temporary Mazinger Z unit, and will also be on it when you get it on stage 32 and 37B. The same goes for Orgun, who will retain whatever upgrades you make to Detonator Orgun in a NG+, and also for Sousuke's M9 Gernsback
** This refers to the secret Mazinger Z you can get (though the game refers to the two Mazinger Zs as the same unit, they are not the same statwise).
*** The Strike Gundam is temporarily obtained on several stages and can be upgraded on those stages. When you get Freedom, the upgrades carry over to it. You get Strike Gundam as its own unit one stage after you obtain Freedom and on the stage where you obtain Strike Rouge.
***** If Gaogaigar is favorited in Part 1 but not in Part 2, Tenryujin will only inherit as a unit from a non-favorited series. However, if GGG Final is chosen as a favorite series on the next playthrough, or when 20 upgrades are unlocked on NG+3, Tenryujin's upgrades will become that of a favorited series. You can't actually "lose" upgrades.
All upgrades inherit retroactively. For example, if you upgrade Tekkaman Blade in part 2 after Dead joins, Dead's upgrades will change accordingly in the next playthrough.
| Unit 1 | Unit 2 | Unit 3 | Unit 4 | Unit 5 | Unit 6 | Unit 7 | Unit 8 |
|---|---|---|---|---|---|---|---|
| Valhawk | Valstork | Valguard | |||||
| Hyoryu | Enryu | Fuuryu | Rairyu | Choryujin | Gekiryujin | Gouryujin | Genryujin |
| Kouryu | Anryu | Tenryujin | |||||
| ARX-07 Arbalest | Bonta-Kun (Secret unit) |
