Here is the full list of all 30 Battle Princess Madelyn achievements.
Defeat the evil sorceress!
Fritzy eats the wizards head!
Collected all of the runes for Fritzy to unlock the gates to the ruins!
Defeat giant toy rabbit!
You've found half the dolls!
Defeated the fart troll!
You've collected 20000 gold pieces.
Defeated Undead Nuburu!
You've killed 2500 enemies!
Defeated the evil tree!
Defeated a mutated Max!
You've completed Stitch Bot!
Defeated the heart of the eel!
You've defeated the Crab Mini boss!
Defeated the zombie boar!
You've released 15 spirits!
Crushed the evil witch sisters!
You've killed 1000 enemies!
You've collected 5000 gold pieces.
Get eaten by the tentacle monsters
Beat the kings guard! Now you have a map to continue your journey!
You've released your first spirit from it's shackles!
Found your first Doll!
You've killed 100 enemies!
You've collected 100,000 gold pieces.
You've released all spirits!
You've found all of the dolls!
You've unlocked the hidden level!
Finished Arcade Mode!
Collect the Maddi doll, you've got your face in a game Maddi!