Colour Bomb is a booster in Candy Crush Saga. It is unlocked in Level 13 and can be used in all level types. Activation is done right before entering a level. The booster simply adds a colour bomb somewhere on the board at the start of the level.
Old description: Start the game with a Colour Bomb! Current description: Start the level with a Colour Bomb! Description on mobile devices (during promotion): Start a level with a Colour Bomb in the mix. Combine it with another candy type to clear those candies fast!! Web description: Combining a Color Bomb with any candy of any color will clear all the candies of that color Web description 2: Switch a Color Bomb with a Plain Candy to eliminate all other candies of the same color.