Here is the full list of all 15 SEASON OF MYSTERY: The Cherry Blossom Murders achievements.
Complete the game in under 2 1/2 hours.
Complete the game without ever using the SOLVE button for minigames or the HINT button during object searches.
Find one thousand hidden objects.
Find 10 pieces of jewerly (Pendants, Necklaces, Rings, etc.)
Find 7 cats.
Solve the mystery and complete the game!
Find 7 Telescopes, Binoculars, or Magnifying Glasses.
Find 30 flying objects (Birds, Ballons, etc.)
Complete 7 different minigames without using the SOLVE button.
During the card game at Kenzo's house, or the shell game at the Geisha house, make a match with a previously uncovered item.
Complete one scene in under two minutes.
Complete 1 minigame.
Complete a scene without using any hints.
Complete the first chapter.
Complete a scene without 3 failed clicks.