A program, a control method, and an information processing apparatus capable of improving excitement of a game. An information processing apparatus (including a server device and a terminal device) executing a process of a game including game content for performing a battle using a plurality of game media may store the plurality of game media selected by a user of the game in association with the user, display some game media among the plurality of game media in a field area and proceed with the game content, and perform a process for providing a cooperation effect including changing of a parameter of a first game medium included in some game media when the first game medium satisfies a predetermined condition and a second game medium in a predetermined relationship with the first game medium and not included in some game media is included in the plurality of game media.