A game of cute, pudgy butts! "HIP GAME" is a puzzle game in which you have to connect the same buttocks of the demon girls so that they do not overflow from the box. Each time you connect two of the demon girls' butts, they will evolve into a different species! By evolving them in succession in a single fall, you can increase your score by connecting combos. Aim for a high score with consecutive evolutions! In the collection, you can see the butts that you have evolved. Let's collect the butts of slime girls, succubus girls, and other unusual monster girls by connecting many of them together!