Here is the full list of all 28 Fantastic Danmaku Festival Part II achievements.
First time open the game
The first time start the festival
Finish the game without continue
Finish the normal mode or more with all the characters without continue
Finish extra story with any character
Stay in music room for more than 2 hours
Finish extra story with all the characters
Keep hurtless for 60 seconds during Spell "Virginal White Fairy Tale" or Spell "Spotless Dreamland"
Grazing counts more then 3,000 in any one non-spell card by Chen in either stage2 or extra story
No shooting before appearance of mid-way boss in stage2 or the first mid-way boss in extra story
Clear the final boss of stage3 without hurts
Collect the final spell card "Ten Bu Hou Rin" in stage 5 in normal mode or more without using low-speed mode and without hurts
Collect the spell card "Seduction‘Wandering Utsusemi’" of Yuyuko without hurts
Collect the spell card "Cherry Garden of Saigyoji" of Yuyuko without hurts
Collect the spell card "Domineering Spider Lady" without hurts
Clear the final boss of extra story without hurts
Clear the final boss of Stage6
Graze counts reaching 40,000
Clear the spell card at final second
To start a seal more than 55 times during games
No moving for 5 seconds when number of danmuku exceeds 800
Clear any one stage in normal mode or more without low-speed mode
Clear all the stages(1-6 or extra stort) with no bomb
Start the final spell card of Stage6 with no more life or bomb and collect the spell card
Scoring exceeds 300,000,000 within single Sakura Seal
Grazing counts reaching 80,000
Crash yourself into enemy to clear a spell card(No shooting)
Finish phantasm story with any character