Here is the full list of all 38 Wedding Witch achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Dodge 100 times.
Achieve a victory with less than 10 damages dealt to the witch.
Achieve 10 or more victories in any difficulty.
Master the familiar magic 10 times.
Drink maximum amount of the Beast Potions.
Drink maximum amount of the Muscle Potions.
Drink 10 corruption potions.
Master the melee magic 10 times.
Drink maximum amount of the Hips Potions.
Collect 100 flowers.
Drink maximum amount of the Small Breasts Potion
Master the projectile magic 10 times.
Drink 10 muscle potions.
Clear Nightmare Wedding difficulty.
Master the curse magic 10 times.
Drink maximum amount of the Corruption Potions.
Master the areal magic 10 times.
Drink 10 small breasts potions
Clear Hard Wedding difficulty.
Master the explosion magic 10 times.
Drink maximum amount of the Big Breasts Potions.
Drink 10 big breasts potions.
Attacked by the Guardian of the seal 10 times.
Drink 10 beast potions.
Use 100 skills
You killed 20,000 devils!
Drink 10 hips potions.
Recover health 100 times.
Lose 10 ore more times in any difficulty.
Critical attack occurs 1,000 times.
You killed 10,000 devils!
Clear Normal Wedding difficulty.
Achieve one victory in any difficulty
Open 100 pumpkin boxes.
Move 1,000 meters in the game.
Get damages 100 times.
You killed 1,000 devils!
You lost for the first time.