Full list of all 19 Cut The Rope (Windows) achievements worth 200 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Windows.
Lose candy 200 times
Reunite 100 candies
Let the spiders steal candy 100 times
Outsmart 200 spiders
Pop 300 bubbles
Cut 2000 ropes
Keep the candy in the air for 30 seconds without ropes or bubbles
Collect 300 stars
Drop candy into magic hats 200 times
Collect 150 stars
Cut 800 ropes
Outsmart 40 spiders
Lose candy 50 times
Have Om Nom open his mouth 10 times in a row
Pop 50 bubbles
Collect 50 stars
Cut 100 ropes
Cut 5 ropes at once
Cut 3 ropes at once