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