Follow the meaning - Photo guides for the ahievements
Hope you enjoy the game and gain all the achievements!
Gone Fishing

Move your screen to the upper-left, and click on the man who is on a boat near the lighthouse.
Gizmo

When you visit the cat lady, Gizmo will appear on the building!
Stinky Job

Flush the toilet in the club 4 times.
Peanut

Dancing in the disco at the back of the nightclub.
Greeting Gone Wrong

When the town becomes dark, go back to the park and click on the person in pink clothes
Paul will take off his hat and scare greet with the person
Shadow

Underneath the street light beside the dock!
Biscuit

Under the water in the second room, Biscuit is at the top-left corner!
Muffin

In the potion room, click on the mouse under the table, the cat will appear outside of the square (It could randomly appear).
Tigger

When you cross the wall to the other side, Tigger is at the bottom-right corner!
Whiskers


When you took the phone card on the table and came out of the little house, Whiskers will appear beside the river!
Luna

When Paul is in the outer space, click on the meteorites.

Luna will appear behind one of the rocks! (Click the cat and it will fly away)
Reunited

If you can find all the cats, click on the white cat's icon on the right of your screen and the achievement will pop up!
Bonus:

At the end of the game, click on the grandma again, she will give you a letter!
Mind in the Maze

You need to go to this place.
Right > Up > Right > Up > Up > Up

The achievement will show up once you tear the corner of the painting on the wall.
The Cloud (1st Ending) + A New Beginning (2nd Ending)


Before it is fully installed, click on cancel (If not, it will lead to the first ending: The Cloud)

Click Delete program

And yes, it will take us all back to the beginning, THE END!
Some other helps you might need
In the bar:

The rooms you should click on when you enter the submarine:

In the tunnel:

Inside the tree:



The three houses:



At the Resistance's hidden place:
