Here is the full list of all 16 Rosenkreuzstilette Freudenstachel achievements.
Defeat the Darkside Devil without taking any damage.
Finish the game as Pamela in 60 minutes or less.
Finish the game as Pamela Arwig.
Run out of time while facing Zorne Zeppelin.
Finish the game as Freudia in 60 minutes or less.
Complete a stage without taking any damage.
Defeat a boss with only one point of Vitality left.
Max out your reserve of Extra Lives.
Find Freudia's lucky charm.
Finish the game as Freudia Neuwahl.
Defeat every member of Schwarzkreuz.
Max out your supply of Cross Tanks.
Defeat the 8 numbered members of Rosenkreuzstilette.
Get kicked back to the Stage Select Screen by Schwer-Muta.
Add the upbeat Strudel to your arsenal.
Complete the Prologue stage.