Here is the full list of all 28 Khimera: Destroy All Monster Girls achievements.
Beat up Serpantina, the Naga
Bounce on enemies three times before touching the ground.
Put Amelia the harpy in her place.
Crush Anchovy, the pizza slime.
Lock up Mimi the Mimic
Drown out the mermaid, Pacifica
Stop DJ Doroko's show.
Squash the pirate captain.
You've Done it! You got an 'A' rank!
You've gotten an 'A' rank on every level
Pick up a total of €25,000 worth of treasure.
Beat up 500 enemies in one file.
Passed Andy Querie's quiz with your soul on the line.
Complete the trading quest and unlock the lucky chax doll.
Land the finishing blow on Mimi with the treasure box.
Rescue every captive fairy.
Collect all of Nyazione's Notebooks.
Find Gourmet Gal in every stage she appears in.
Join the pirate captain in her quest for treasure.
Get to level 10 in CAKEBOY.
Defeat Icey Path's secret boss before taking four hearts of damage.
Completed a deathless run on every stage on one file!
Completed a berserk run on every stage on one file!
Clear Race Mode with a time under 33 minutes!
Clear berserk race mode with 10 or fewer deaths!
Completed the Harvest Festival Event!
Found every piece of candy hidden in the Harvest Festival.
Found all ten notebooks in the Harvest Festival!