Here is the full list of all 44 Hadr achievements.
Be curious.
Make controls box disappear.
Make all the traps disappear.
Make all the books disappear.
Make one of the paintings disappear.
Make both paintings disappear.
Make all the darker books disappear without disappearing any of the white books.
Make the trash cans disappear.
Ride in the train for a long time.
Make a lot of bags disappear.
Do not make a single thing disappear.
Make all the pillows disappear
Get lost in the mist.
Open the room exit without freeing the second cloth.
Switch between cloths.
Make the rabbit disappear.
Start the game again in the middle of the game.
Finish the room without making a single bad drawer disappear.
Make the turntable disappear.
Make a lot of bad drawers disappear.
Make all the glasses disappear first.
Finish the bar room very fast.
Have only both blue colors in the room.
Drown the cloth.
Make the mirror in bathroom disappear.
Keep the cloths close to each other all the way up.
Fly unnecessarily high.
Make all the bolts disappear.
Finish the level room while not moving with the cloth hanged on the painting.
Do not make anything disappear.
Switch between cloths the least times possible.
Make everything disappear.
Make the magicians hat disappear.
Get rid of the car.
Finish the canal puzzle without revealing the hint for it.
Get rid of all the trash.
Enjoy the credits for quite a bit.
Let the cloth fall the entire heigh of the credits.
Finish the game without skipping or restarting.
Restart any of the rooms.
Skip a room.
Skip every room.
Finish all the achievements.
Find a present in every level and make it disappear.