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