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