Here is the full list of all 46 TOUHOU SKY ARENA MATSURI CLIMAX achievements.
Complete Arcade Mode with Tenshi.
Complete Arcade Mode with Youmu.
Complete Arcade Mode with Flandre.
Complete Arcade Mode with Sakuya.
Complete Arcade Mode with Cirno.
Complete Sky Adventure Mode.
Unlock all Reigyokus.
Win 10 Shootout Battles.
Battle 100 times in Online Play.
Stun opponents 20 times with Attack Spark.
Dodge attacks 20 times with Reversal Spark.
Pull off 20 Double Attacks.
Deal 20 spinning knockbacks.
Pull off 20 Climax Spells.
Finish opponent with Climax Finale.
Win in a 2-points or higher match without losing a single point.
Pull off 20 Mirage Slide attacks.
Watch Replays 5 times.
Finish within 1 minute.
Set a title in Online Play.
Edit function message.
Win 3 times in a row in Online Play.
Win your first battle in Online Play.
Select your favorite character.
Practice more than 5 minutes in Training Mode.
Win via remaining HP when the battle runs out of time.
Complete all items in tutorial mode.
Collect all trophies.
Complete Arcade Mode with Reimu.
Complete Arcade Mode with Marisa.
Complete Arcade Mode with Alice.
Complete Arcade Mode with Suwako.
Complete Arcade Mode with Utsuho.
Complete Arcade Mode with Suika.
Complete Arcade Mode with Reisen.
Complete Arcade Mode with Mokou.
Complete Arcade Mode with Aya.
Complete Arcade Mode with Sanae.
Complete Arcade Mode with Koishi.
Complete Arcade Mode with Kogasa.
Complete Arcade Mode with Nue.
Achieve winning streak of 20 in Survival Mode.
Set a Reigyoku.
Pull off 20 Critical Guards.
Reach 1,200 STR.
Reach 1,200 TTR.