Super Robot Wars/Y/Secrets

Secrets

Note that, as of this moment, secret requirements aren't 100% known. Secrets that the game confirms will be tagged with (Confirmed)

Early Billbine, Gran Garan, Novel Dsserd, Marvel(Pilot), Nie and Keen(Assist)

• Complete main mission 2-2 "Aliens Adrift"
• Show and Daba need to have a combined score of 50+
• Complete the side mission 2-8 "Aura Ladies"
• Aura Ladies becomes unavailable after completing main mission 3-6: "The New World Oath"

Leccee's Appearance

• Complete main mission 2-2 "Aliens Adrift"
• Show and Daba need to have a combined score of 50+
• Play side mission 2-8 "Aura Ladies", during the mission you can choose Leccee's appearance with a dialogue choice
• Choose "No way Leccee should change" for her short hair and purple outfit
• Choose "I can see Leccee's new look" for her long hair and blue outfit
• Completing main mission 3-6: "The New World Oath" results in Leccee using her long hair and blue outfit.

Early Sirbine

• Complete main mission 2-2 "Aliens Adrift"
• Show and Daba need to have a combined score of 50+
• Complete the side mission 2-8 "Aura Ladies" and the side mission 2-12 "Byston Well, Eternal"
• Aura Ladies becomes unavailable after completing main mission 3-6: "The New World Oath"

Early L-Gaim Mk-II and Amm(Pilot)

• Complete main mission 2-5 "Returned from the Abyss"
• Complete side mission 2-8 "Aura Ladies"
  • Requires completing the early Billbine, Gran Garan, Novel Dsserd, Marvel(Pilot), Nie and Keen(Assist) secret
• Daba needs a score of 55+
• Complete the side mission "Double Heart"
• "Double Heart" becomes unavailable after completing main mission 3-6: "The New World Oath"

Early Black 6, Rhinos, Godinion and Reika(Assist)

• Complete "Majestic Prince, Sortie" in Chapter 2
• Izuru, Asagi, Kei, Tamaki, and Suruga need to have a combined score of at least 85.
• Complete the side mission 2-11: "The Despondence of the Sixth"
• "The Despondence of the Sixth" becomes unavailable after completing main mission 3-6: "The New World Oath"

Unlock Stage "To Be a Hero."

• Do not complete "A Reason to Fight"
• Complete "Majestic Prince, Sortie" in Chapter 2

When "To Be a Hero unlocks, "A Reason to Fight" will disappear for the rest of the game

Unlock Stage "Beyond Time, Beyond Space"

• During Chapter 2, Amuro and Kamille have a score of at least 90. (Can be achieved on Ch 3.)

Completing the stage rewards you with Nu Gundam and Zeta Gundam.

Early Destiny Gundam and Lunamaria(Pilot)

• Complete the main mission 2-4 "Cursed Mobile Suits"
• Shinn has a score of 50+
• Complete side mission 2-15 "Who Determines Destiny"
• It is unknown when "Who Determines Destiny" becomes unavailable

Early Gundam Sandrock Custom

• Complete main mission 2-4 "Cursed Mobile Suits"
• Complete side mission "Justice and Friendship"
• "Justice and Friendship" becomes unavailable after completing main mission 2-7: "The Hand Guiding the Future"

Wing Gundam Zero strengthened

• Complete main mission 2-4 "Cursed Mobile Suits"
• Complete side mission "Justice and Friendship"
• Heero has a score of 55+
• Complete side mission "Those Who Know Pain"
• Completing main mission 3-6: "The New World Oath" automatically unlocks "Those Who Know Pain" even if "Justice and Friendship" is not completed and/or Heero's score is under 55
• It is unknown when "Those Who Know Pain" becomes unavailable

Unlock Stage "The Bird Sings of Destruction"

• During Chapter 2, Hyoma and Akira have a score of at least 100. (Can be achieved on Chapter 3)

Completing the stage rewards you with the Grandasher, Grandasher (MAP) & Godvoice, Godvoice (MAP)

Early Tallgeese III, Taurus and Strike Freedom

• Complete the Chapter 2 side missions "The Bell of Londenion" & "Char and Amuro" OR "The Gaze Of The Red Comet" & "The Light The White Meteor Saw"
• Complete the Chapter 3 side missions "The Herald of the Red Comet" or "The Charge of the Red Comet"
• "The Herald of the Red Comet" and the "The Charge of the Red Comet" become unavailable after completing main mission 3-6: "The New World Oath"

Early Sazabi and Char

• Complete the Chapter 2 side missions "The Bell of Londenion" & "Char and Amuro" OR "The Gaze Of The Red Comet" & "The Light The White Meteor Saw"
• Complete the Chapter 2 main mission 2-7 "The Hand Guiding the Future"
• Amuro needs a score of 40+
• Complete the side mission "The Charge of the Red Comet"
• This stage replaces "The Herald of the Red Comet" when the conditions are fulfilled
• Tallgeese III, Taurus, and Strike Freedom join in both side missions
• Both "The Herald of the Red Comet" and "The Charge of the Red Comet" become unavailable after completing main mission 3-6: "The New World Oath"

GranVang's Decisive Cannon Fire Mode Koga, VangNex's Ultimate Tactical Charge Gokuen, Cybuster's Cosmo Nova and Improved Cyflash

• After reaching Chapter 3, Soji, Chitose, and Masaki have a combined score of at least 120.
• Complete the DLC-P03 Mission "The Weight of Purpose"

Xelguard's PRODIG the Passion Dogma, Creation 1:Universe Command and Quark Cluster Nova Attacks

• After reaching Chapter 3, Iori/Amari, Sagiri, and Saizo have a combined score of at least 120.
• Complete the DLC-P04 Mission "The Dogma Way, The Office Way"

Guel Jeturk/"Bob" and Darilbalde

• Suletta must win each duel mission.
• If the objectives were met, he will join on mission 4-3 "The Witch's Wishes".