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
Wake up the golden giant
Catch 6 balloons
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Not a cat!
Spooky
Owl in the hole
Catch 9 birds in your imagination
Pursue them
Alive and dead
Find the achievement code
Sleeping Beauty
What gamers want
Drink it when it's hot
Dogs or Cats?