Fashion Box: Christmas Diva is a winter-themed dress-up game. The lovely Bonnie needs the player's help with showing others her love of Christmas and wintertime through her makeup and outfits.
The player receives access to two groups of items. Bonnie's makeup includes a variety of options for holiday-themed eyeshadow, mascara, lipstick and face gems. They must then select an outfit, such as a top and bottom combination, jewelry and footwear. The game then prompts them to make additional makeup and fashion decisions for a second look.
The player can't leave a dress-up area unless a purple heart on a vertical bar on the left side of the screen reaches the top of the bar. As a result, they must try different items on Bonnie before making their final selections.
Fashion Box: Christmas Diva offers a photo option as well for players who want to share the looks with friends or family or need inspiration for their own holiday makeup and outfit choices. They can download a single picture that shows Bonnie modeling both looks in the background and makeup selections in the foreground or individual shots that include Christmas and winter graphics. The player merely needs to use the download button at the bottom-right corner.