Level 421 is the eleventh level in Soda Swamp and the ninety-third candy order level. To pass this level, you must collect 7 striped candy + striped candy combinations and score at least 10,000 points in 50 moves or fewer. If you have extra moves left in this level, Sugar Crush will activate striped candies and score you additional points.
It is insanely difficult to pass because collecting 7 striped+striped combos is tedious with a small amount of space and all 6 colours unless you clear the cake bombs, but they don't make anything easier. The cakes can easily ruin your plans on collecting the orders, not to mention the toffe tornado, which can also easily ruin your progress.
Another problem (Mobile Version) is that even though the stripes are in marmalade, once a cake bomb is set off, they get destroyed. Thus the stripes in marmalade are deceivingly useless. THIS ISN'T THE CASE ON FACEBOOK - leave the stripes on one side in the marmalade and when the first cake bomb is set off then they will give your first match. Thus can only do one of these pairs like this.
Try to bring down the top striped candies to their bottom counterparts. However, this is VERY difficult because a cake bomb may go off or because combining one set of striped candies will remove the marmalade of the opposite side's bottom one.
Try to make at least one striped candy combination before setting any cakes off.
Get rid of the cakes bombs as soon as you can to make more space on the board.
Plan your moves carefully; when combining striped candies make sure it won't ruin any other set ups you may have.
The cake bombs are a tremendous hazard. They explode whenever all 8 slices are cut off. They can be advantageous by refreshing a bad board, but they may blow off a board with striped candies ready to mix as well.
Don't bother to use boosters unless there are only 1 or 2 mixes left with a lot of moves available. Lollipops and Free-switch are the only helpful ones, and they are very situational at best. Aside from these boosters, all start-up boosters are pretty much useless.
Tremendous luck and skill is needed to complete the order of 7 striped + striped mixes. Eventually, there should be a good board to complete the task.