Here is the full list of all 50 Bayonetta achievements. It takes around 35-40 hours to unlock all of the achievements on Windows.
Purchase all techniques.
Complete all Chapters on any difficulty.
Defeat Father Balder on any difficulty.
Discover half of all the Umbra Witches' final resting places.
Defeat Sapientia on any difficulty.
Defeat Iustitia on any difficulty.
Execute 50 Torture Attacks.
Defeat Temperantia on any difficulty.
Defend Cereza during the out of body experience, ensuring she takes no damage.
Obtain three complete Angelic Hymn Gold LPs.
Purchase three new techniques.
Earn 10 Platinum Medals. Must be earned in 10 different battles.
Defeat Fortitudo on any difficulty.
Dodge the runaway streetcar during Chapter 2.
Engage Witch Time successfully 10 times.
Execute a Wicked Weave attack while using Dodge Offset.
Complete the Vestibule.
Execute a Torture Attack.
Complete Chapters 1 through 4 on Normal difficulty.
Complete Chapters 5 through 7 on Normal difficulty.
Complete Chapters 8 through 11 on Normal difficulty.
Complete Chapters 12 and 13 on Normal difficulty.
Complete Chapters 14 through the Epilogue on Normal difficulty.
Complete all Chapters on Normal difficulty.
Complete Chapters 1 through 4 on Hard difficulty.
Complete Chapters 5 through 7 on Hard difficulty.
Complete Chapters 8 through 11 on Hard difficulty.
Complete Chapters 12 and 13 on Hard difficulty.
Complete Chapters 14 through the Epilogue on Hard difficulty.
Complete all Chapters on Hard difficulty.
Complete all Chapters on ∞ Climax difficulty.
Engage Witch Time successfully 10 times consecutively.
Create 20 Concoctions.
Kill an enemy by jumping on top of them.
Avert 10 enemy attacks with the Moon of Mahaa-Kalaa equipped.
Counter 10 enemy attacks with the Moon of Mahaa-Kalaa equipped.
Counter three enemy attacks consecutively with the Moon of Mahaa-Kalaa equipped.
Taunt and defeat five plus angered enemies while taking no damage. Gaze of Despair may be equipped.
Execute 20 Wicked Weave attacks while using Dodge Offset.
Kill 20 enemies using only Iai-Jutsu with Shuraba. (Iai-Jutsu performed by holding the Y button.)
While never setting foot on the ground, grab enemies 10 times using Kulshedra.
Freeze 20 enemies while wearing Odette.
Obtain seven complete Angelic Hymn Gold LPs.
Discover all of the Umbra Witches' final resting places.
Discover all Alfheim portals.
Complete half of all Alfheim portals.
Complete all Alfheim portals.
Collect all of Antonio's Notes.
Destroy all the tentacles that drop down together during in single sequence in Chapter 9.
Earn Platinum Medals during Verse 1 and Verse 2 of Chapter 14.