Criminal Girls 2: Party Favors is a role-playing game set in an all-girls prison. The story follows a group of girls who are sent to a juvenile detention center on a remote island after committing various crimes. To survive, they must make friends with the other inmates and complete tasks, but there's a catch - the girls' actions will determine their fate at the end of the game.
The gameplay involves controlling the girls as they navigate the prison, interact with other characters, and complete missions. Each girl has unique skills and abilities, which can be upgraded throughout the game. The player must manage relationships between the girls, assign tasks, and make decisions that impact the story and its multiple endings.