Here is the full list of all 15 Strania - there are The Stella Machina - there are achievements.
Cleared the game on "HARD" or "EXPERT".
Cleared the game on "NORMAL" without continuing.
Cleared the game on "HARD" without continuing.
Cleared the game on "EXPERT" without continuing.
Earned 10-dan for all weapons.
Cleared Mission 4 without releasing the booster.
Cleared the game after successfully completing all of the defense and assault missions.
Cleared the game after failing all of the defense and assault missions.
Armed all weapon slots with swords.
Armed all weapon slots with lasers.
Armed all weapon slots with Lv.2 rockets.
Hit the cancel button within 5 seconds of the start of the credits.
Cleared the game on "NORMAL"(side"Vower") difficulty without continuing.
Cleared the game on "HARD"(side"Vower") difficulty without continuing.
Cleared the game on "EXPERT"(side"Vower") difficulty without continuing.