Super Robot Wars/30/Secrets

Confirmed

Lancelot Albion Zero & Early Suzaku

During the Mission "Zilkhstan's Darkness", defeat Nagid Shu Mane before it retreats. Kallen must deliver the killing blow. Suzaku will join with the Lancelot Albion Zero after the stage.

Full Armor Gundam Mk-II

Quattro's total kill count must be 20+ at the beginning of "Augusta Remembrances/A Sign."
During the mission, "Augusta Remembrances/A Sign," Jona defeats 3 units before the end of turn 2.
If the criteria have been satisfied, Kamille will sortie in the Full Armor Gundam Mk-II.
Otherwise, the Full Armor option parts can still be obtained by completing the mission "Alone in the Wild".

"Alone in the Wild" lowered score requirement

Play "The Man They Called Newtype" or "The White Comet's Contrails". If Amuro destroyed 4+ enemies in that mission, the score requirement to unlock "Alone in the Wild" will be lowered from 60 to 30.

Kagero

1. During the Mission "Mutual Trust" have Shadow Maru defeat Kagero, then have Shadow Maru, J-Decker or Build Tiger defeat Kagero after he reappears.
2. Clear the Mission "7 Officers" (Unlocked by getting the combined Score of Gridman + J-Decker + Build Tiger to 80).
3. Clear the Mission "Return of the Mirage".

Leccee's Appearance

During Mission "Cross Point" a dialogue choice will change how Leccee appears during that stage
1. "No way Leccee should change" - Short hair, purple outfit
2. "I can see Leccee's new look" - Long Hair, blue outfit

2nd V2 Gundam

Complete the mission "New Wings" before completing the mission "A Flash Through Space".

Supporter Boss, Nuke and Mucha

During the mission "Life of a Mazin", have Kouji score 2 or more kills after the Majin Power event.

Tatra & Tarta Supporter, Aska & Giant Sang Yung

Complete the missions "Chizetan Storm" and "Imperial Princess" before completing the mission "A World In Turmoil".

Nei Moh Han & Auge

Partially confirmed: Score requirement confirmed, other 5 objectives remain unconfirmed
By the end of the mission "Picaresque", Daba must have a score of 100+ or complete all of the following conditions:

• On mission "Contact Pentagona", Daba must defeat Nei.
• On mission "Lady Lady", Daba must fight Nei.
• On mission "Cross Point", Daba must fight with Nei.
• On mission "Escape Giwaza", Daba or Leccee must defeat Nei.
• On mission "Picaresque", Daba must defeat Gablae and Nei. <-- this is obviously wrong, Nei doesn't appear in Picaresque

If either the score requirement is met, or the other 5 requirements, the mission "My Love" will unlock. Complete it to get Nei and the Auge. You will also unlock Gablae and the Ashura Temple early.

Supporter Sakura

In the mission "Judgement", defeat Conqueror King Genesic (Triple Zero) with either GaoGaiGar, GaoGaiGo, GaoFighGar or Kakuseijin V2
If requirements are met, she will join once "Future at Stake -VERSUS-" is concluded

True Ending

At several points in the game, Caruleum Vaull (the OG antagonist with the horns) will ask Mitsuba a moral question; once you answer, he'll tell you if your answer tipped the scales left or right.

• Mission "A Towering Light": Answer "Let the billion die." to gain +1 Left points
• Mission "A Purified Land": Answer "Take the life of others." to gain +1 Left points
• Mission "Preordained Destiny": Answer "Treat the clone as different." to gain +1 Left points
• Mission "A World in Turmoil": Answer "Make key crew members exempt." to gain +1 Left points
• Mission "Arbitrator": Answer "Take fate into my own hands." to gain +1 Left points

If you have answered more left than right, you will take the True Ending Route. Otherwise, you will take the Normal Ending Route.
On a New Game Plus, in the introduction of the mission "Judgement", you will instead be given a choice (regardless of point count):

• Answer "The Earthlings must be eliminated by the Quaestors." to take the True Ending Route
• Answer "The Quaestors must repair their faults." to take the Normal Ending Route

Lamia & Betterman Cataphract

During the mission "Future at Stake -VERSUS-", defeat Betterman Cataphract with Guy. He will join after the stage is completed.

Supporter Nora

During the mission "Heaven & World", Ernie must either defeat Wyver (Dorotheo), or have a score of 100+ by the end of the mission. Nora will join once the stage is completed.

Quwasan Olibee & Calvary Temple

Complete at least one of the following requirements:

• During mission "Escape Giwaza" have Daba use the "Talk" command next to Olibee.
• Daba must have a score of 150+ before starting "The Dictator" or "Dreamers Forever" mission.

If either conditions is completed, Olibee will join your team during "The Dictator" or "Dreamers Forever" mission when Posaydal appears.

Saudade of Sunday (Michael Garret) & Dahlia of Wednesday (Fasalina)

1. On mission "Towering Light", defeat Gadved with Van. (+1 Michael point)
2. On mission "The Meaning of Happiness", defeat Michael with Van. (+1 Michael point)
3. On mission "World in Turmoil", defeat Fasalina with Van. (+1 Michael point)
4. On mission "Endless Dream", defeat Birthday (Claw) with either Van or Ray.
5. If you have acquired 2+ Michael points and completed step 4, the secret mission "A Dish Best Served Cold" will be available once you complete either "The Angels Ascend" or "To a Future Filled With Light". Play it to recruit Michael and Fasalina

Victim

During mission "Heart to Heart" or "To a Future Filled With Light", both Victim and Fire J-Decker must fight Big Mother at least once each. Big Mother must be defeated by either Victim or Fire J-Decker.

Supporter Akane

Akane points:

• On the mission "Awakening" / "Destruction", use Gridman to defeat Devadadan. (+1 point)
• On the misson "7 Officers", use Gridman to defeat Anti. (+1 point)
• Complete mission "Melancholy". (+1 point)
• Complete mission "What the Heart Dictates". (+1 point)
• On the mission "Creation" / "Awakening", use Gridman or Gridknight to defeat Zegga. (+2 points)

On the mission "Creation" / "Awakening", if you have 4+ Akane points by the time Alexis Kerib appears, use Gridman or Gridknight to defeat him. Akane will join as a supporter once the mission is completed.

Unconfirmed

Supporter Clef and Cephirans

Requirements unknown
Possible theory: Complete one or more of the following missions before completing "Dark Invitation"

• Imperial Princess
• Chizetan Storm

Katejina & Cronicle

1. On Earth Route "Warriors of the League Militaire" / "Encounter in Space", have Üso defeat Cronicle. Katajina Points+1. Have Üso defeat Lupe. Katejina Points+1

2. On Space Route "League Militaire" / "A Voice Calling in Space", have Üso defeat Katejina. Katejina Points+1

3. On mission "Melee Battle" (possibly space route's "Free-For-All"), have Üso defeat Lupe. Katejina Points+1

4. On mission "New Wings", have Üso fight Katejina. Katejina Points+1. Have Üso defeat Katejina. Katejina Points+1

5. On mission "Infiltrating Zanscare", have Üso fight Katejina. Katejina points +1. Have Üso defeat Katejina. Katejina Points+1

6. On mission "The Red Comet's Duty", defeat Cronicle before reinforcements arrive (probably "before the Dreisstrager arrives"). Katejina Points+2

7. On mission "What Follows Myth", defeat Katejina. Katejina Points+1

8. On mission "The Angels Ascend" / "Above the Angel's Halo", defeat Zoltan with Chronicle and Katejina still present. If Katejina Points ≥4, use Üso to defeat Katejina, then use Üso to defeat Cronicle.

9. On mission "Doorway to the Abyss", select "I sense Katejina".