Cut the Rope Cheats

Secrets

Turn Candy into Doughnut or Cupcake

On the menu screen tap the candy once to make it turn into a doughnut, twice to turn into a cupcake and three times to make it turn back into a candy.

Easter Mode

At the title screen, tap the candy on a string hanging out of the o in rope. The candy should turn into an Easter egg. Play the game, and the candy will be replaced by the egg and Omnom will wear bunny ears for a second when the candy goes close to him!
Note: This requires the April 2011 update.
 

Cut The Rope Hints

Tummy Tester Achievement
For this Achievement you'll need Om Nom to open his mouth 10 times in a row. Select Level 1, Cardboard Box and select level 4 of the Cardboard box. Cut the Top, Left and Bottom rope at the same time, leaving only the right rope. The candy will dangle and Om Nom will open his mouth as it passes by.
Alternate technique by Shua: On level 3-9, there are sliders. On the bottom slider, just get close to the Om-Nom then away from it ten times. This is the easiest way to get that achievement.

Achievements
Rope Cutter Maniac - Cut 800 ropes
Golden Scissors - Collect 300 stars
Silver Scissors - Collect 150 stars
Rope Cutter - Cut 100 ropes
Bronze Scissors - Collected 50 stars
Bubble Popper - Pop 50 bubbles
Weight Loser - Lose candy 50 times
Spider Buster - Outsmart 40 spiders
Master finger - Cut 5 ropes at once
Quick Finger - Cut 3 ropes at once
Foil Box Completed - Complete the Foil Box
Gift Box Completed - Complete the Gift Box
Cardbord Box Completed - Complete the Carboard Box
Fabric Box Completed - Complete the Fabric Box

How to Get the Cut Five Ropes at Once Achievement - Master Finger
Got to Level 1-7. There are six ropes. Swipe across the iPhone with three fingers at once and you should sever five of them for the Achievement.
Alternate method: On 1-18, swipe two fingers straight up the sides very quickly. It may take a few tries but you can get the Achievement this way.