Good Girl Bad Girl is a casual running game that allows players to choose between good or bad deeds. The game is set in a 3D environment and has a simple gameplay. On each level, players pick up objects and make a destiny choice between a good or bad deed. The ultimate goal is to reach the Heaven or Hell gates. The game rewards players with demon or angel wings if they run their hero well. These wings help players to fly through the rings after the finish line to multiply their reward. <br/><br/>Players can choose to be a Good Girl or a Bad Girl at the beginning of the level. If they choose to be a Bad Girl, they need to do only bad deeds to turn into a Demon. In this case, good deals hold up their progress on the way to Hell. The game allows players to use a Start Boost, which gives them magic wings at the beginning of the level. They can also change the location and choose between sea, forest, or China landscapes. <br/><br/>Players can upgrade both Good Girl and Bad Girl by collecting diamonds and getting rewards for levels to open new skins. The game has obstacles such as spins, baddie with a knife, and water with sparkling wire. One wrong move and the level is failed. The game also allows players to upgrade Hell and Heaven. They can get rewards for each level and gain angel signs and devil elements. Players can decide between corgi and harp or cocktails and drums. <br/><br/>Overall, Good Girl Bad Girl is a fun running game for girls that allows them to choose between good or bad deeds. The game has a simple gameplay and rewards players with demon or angel wings if they run their hero well. Players can upgrade both Good Girl and Bad Girl by collecting diamonds and getting rewards for levels to open new skins. The game also allows players to upgrade Hell and Heaven.