Level 425 is the fifteenth and last level in Soda Swamp and the 145th jelly level. To pass this level, you must clear 75 double jelly squares in 18 moves or fewer.
When you complete the level, Sugar Crush is activated and will score you additional points.
This level began the hatred of toffee tornadoes and caused the game iOS rating to fall from 5 stars to 4.5. Fortunately, the toffee tornado underwent several nerfs before finally disappearing for good.