Merge the Balls: Candy Factory is a merge game. The player merges colored balls that move like water balloons in a container in front of a background designed to look like the exterior of a candy-making factory in a world that features landscapes made of chocolates, cupcakes, lollipops, tarts and a wide range of other sweet treats. The player's merges these balls until they run out of space in an attempt to reach the highest possible score.
As with similar games, the player drops a colored ball into the container, where it bounces, rolls and slides a bit before settling in a spot. They then drop a matching ball on top of it to create a new, larger, different-colored ball. When the next ball isn't a matching one, they drop it elsewhere in the container.�
Balls that don't merge pile up over time. The player can't allow the balls to stack above a red-dashed horizontal line near the top of the container. If that happens, they lose the game and must start again.
Merge the Balls: Candy Factory helps the player track their points by displaying the number in the upper-left area above the container. The player can reload the game or turn the sound off using buttons in the upper-right area.