The different level types bring different "Sugar Crush" effects at the end.
Moves - there is no real "Sugar Crush" effect here, except unactivated special candies being activated.
Jelly - for every move remaining, three jelly fish come on the screen and start eating the candies at random, giving you more points.
Ingredients/Candy Order - both levels have the same effect. For every move remaining, a candy at random will become a striped candy, giving an extra 3000 points for every striped candy. Then they all activate.
Timed - any +5 candies left on the screen will turn into the exploding wrapped candy and activate itself. After an update, this only happens on the mobile version.
The Dreamworld is a new world separate from the main game that contains levels 1 to 320. They are exact replicas of the original levels except with more blocker introduced earlier and are more common on the board.
Timed levels are the only levels in which you are not pressured by the amount of moves you have left. However, you have to make quick decisions to earn three stars. Level 297 is the hardest timed level to earn three stars.
The first Candy Crush Saga support site, CrushingCandies.com, passed the limit of 5000 unique visitors per day in only 3 days.
All the level numbers ending in 65 are hard or very hard. Level 65 used to be the most hated level ever, Level 165 used to be a very hard candy order level, Level 265 is a hard jelly level, Level 365 is a very hard candy order level, Level 465 is a hard ingredients level, and Level 565 is a very hard jelly level.
Levels contains the #'s 1,4,7 have a pattern where they form a hard level. Level 147, Level 417 and Level 471 are all hard levels. Maybe someday in the future if Level 714 or Level 741 comes out it will become a hard level.
Levels in the iOS version are marked by a bubble looking element. Once the bubbles were supposed to be opaque, but now in the new update, the bubbles have become translucent and more colorful.