Here is the full list of all 30 GUILTY GEAR XX ACCENT CORE PLUS R achievements.
[Player Match] First victory attained.
[VS 2P] Battled offline.
Game started.
[Arcade] Completed.
[Arcade] Order Sol defeated.
[Arcade] Completed in difficulty level MANIAC
[M.O.M] Completed.
[M.O.M] Order Sol defeated and completed.
[VS CPU] Won against CPU on difficulty level MANIAC.
[Survival] First intrusion occurred.
[Survival] Attained lv. 999 and defeated Gold Order Sol.
[Survival] Selected Time Traveling skill 3 times in a row.
[Survival] Equipped skills Berserk Mode and Limit Break and completed.
[Survival] Classic Survival completed.
[Training] Trained for over 10 hours.
Got all character illustrations.
[Mission] Completed 5 mission with any character.
[Mission] Completed all missions with any character.
[Story] Saw one ending.
[Story] Saw all endings.
[Ranked Match] First victory attained.
[Ranking Match] Won 10 in a row.
[Ranking Match] 100 battles fought.
[Player Match] 100 battles fought.
Even with a huge difference in health, you came from behind and won.
You scored your first instant kill.
Successfully executed your first throw escape.
You've fought on all stages.
You made contact with an alien.
You threw a chikuwa and dumbbell at your opponent.