Before episode: Minty the Pegasus has eaten too much candy and cannot fly, so she asks Tiffi to help give her a boost. Tiffi says that helping is her specialty. After episode:
Tiffi grabs a chocolate teeter-totter to use as a catapult. She jumps on it to send Minty flying in midair. Minty can once again fly.
Rainbow Runway contains four considerably hard-hard levels, 427, 429, 431 and 432, three very hard levels, 428, 434 and 438, and one insanely hard level, level 437. Overall, it is slightly harder than the previous episode, Soda Swamp.
The website Crushingcandies.com hoaxed a fake episode 30. It was supposedly called "Cupcake Forest" and contained 7 jelly levels, 5 ingredients levels, 2 candy order levels, and 1 timed level. Crushingcandies.com then explained they got the false information from the regular Candy Crush Saga Wikipedia page and apologized for the false information.
Before the release, if you scrolled to the very top of the board, the first three spaces of the episode could be seen, but the spaces had no level type icon or number, and the colour was dark blue, although this episode's colour is pink (see picture).
Upon its release, when you are playing timed levels, displaying "Get (required points) points!" is now "Get (required points) points in (time) seconds!".
This episode starts a trend in which all levels ending in 0 or a multiple of 10 are considerably hard or higher, starting from level 440 and ending in Level 570.
Even though this episode is based on rainbows, there are hardly any rainbow candies at all except when you get them from a mystery candy in levels 432 and 435.