Here is the full list of all 39 SD GUNDAM G GENERATION CROSS RAYS achievements.
Acquire all achievements.
Complete all quests.
Level up an MS/MA unit to LV 75.
Clear all stages.
Register all MS/MA units to the MS/MA Profile.
Register all characters to the Character Profile.
Unlock all profiles.
Register all modifications to the Production List.
Complete Mobile Suit Gundam Iron-Blooded Orphans Gekko.
Complete all series in the Post Disaster (P.D.) timeline.
Register all warships to the Warship Profile.
Complete Mobile Suit Gundam 00F.
Complete all series in the Anno Domini (A.D.) timeline.
Deal more than 100,000 damage points to an enemy unit in one battle.
Complete Mobile Suit Gundam 00.
Complete Mobile Suit Gundam 00 the Movie: A Wakening of the Trailblazer.
Level up a scouted character to LV 75.
Complete Mobile Suit Gundam SEED C.E. 73 -Stargazer-.
Complete all series in the Cosmic Era (C.E.) timeline.
Complete Mobile Suit Gundam SEED Destiny.
Reach 4,000 total kills.
Complete Mobile Suit Gundam Iron-Blooded Orphans.
Level up a Warship to LV 35.
Complete Mobile Suit Gundam SEED X Astray.
Complete Mobile Suit Gundam SEED Astray.
Complete Mobile Suit Gundam Wing: Endless Waltz.
Complete all series in the After Colony (A.C.) timeline.
Complete Mobile Suit Gundam Wing.
Design a unit.
Complete Mobile Suit Gundam Wing: Dual Story -G-Unit-.
Complete Mobile Suit Gundam SEED.
Spend 1,500,000 Capital.
Exchange a unit.
Scout a new character.
Develop a unit.
A dispatched group successfully returns.
Create a new custom character.
Register a new modification to the Production List.
Complete a quest.