Here is the full list of all 16 The Cat Games achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Catch 3 bugs
Owl in the hole
Spooky
Not a cat!
Catch 6 balloons
Wake up the golden giant
Pursue them
Catch 9 birds in your imagination
Drink it when it's hot
What gamers want
Sleeping Beauty
Alive and dead
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Find the achievement code
Dogs or Cats?