Blue Girls Makeup is a fantasy makeover game. The player helps a group of three blue-skinned girls create looks inspired by the Avatar film series and everyday normal human girls.�
The player starts with the first prompted character. They receive a wide variety of makeup and accessory items via categories and a sidebar on the right side of the screen. For example, the player might change the girl's skin tone, iris color, eyeshadow, liquid liner eye makeup, mascara or lipstick. They might give her face stripes, sparkle accents or hair and jewelry accessories. Any time they don't like a selection, they remove the item by selecting it on the sidebar a second time.�
Some categories aren't available unless the player watches videos. That said, the videos aren't a requirement. The player can choose to skip a blocked category. To finish the makeover task, they merely need to make certain that a vertical progress bar on the left side of the screen fills entirely.
Blue Girls Makeup allows the player to save images of the individual looks for each girl and the group to share with their friends and others or use as inspiration for Halloween or other fantasy dress-up events. They must select the camera button on the main screen, and then use the download button marked with a down-pointing arrow. Each image depicts a girl or the group in front of a backdrop of multiple blue colors with wood sprite seeds floating through the air.