Here is the full list of all 13 Konrad the Kitten achievements.
Finish the kitten tutorial.
Visit the bathroom.
Chill out in the living room.
Go to the dark forest.
Visit the beach with your kitty.
Cuddle the kitten in plushy mode.
Wear 4 different accessories at the same time.
Clear the table in the Tea party minigame.
Give the kitten a balloon ride.
Get a total score of 10 points.
Have 100 coins in your purse.
Get 1000 points in a mini-game.
Get all accessories available in the game.