Skullgirls Mobile is a free-to-play mobile spin-off/prequel of the original Skullgirls developed by Hidden Variable Studios. It was released for iOS and Android under LINE Corporation on May 25th 2017.
In lieu of a roster made up of completely different characters, Skullgirls Mobile has fighters based on six different color palettes (including the original) of cast members from Skullgirls 2nd Encore, each with a unique title besides the character's name. From there, fighters are split between rankings of bronze, silver and gold (with two palettes each per rank). Each character palette is associated with its own element: fire, water, wind, light or dark.