Super Robot Taisen EX features a crossover of characters from various familiar robot anime, with each character having their own unique role and abilities. This game has a battle system that emphasizes teamwork, combining robots from different universes such as Mobile Suit Gundam, Mazinger Z, Getter Robo, Daitarn 3, and more. The story begins with the world facing a crisis due to unpredictable enemy attacks. Scientists and warriors from multiple robot universes must cooperate to protect the world from an impending disaster. The main characters of the game are tasked with various missions while also dealing with internal conflicts, including betrayal and treason between factions. One of the standout features of Super Robot Taisen EX is its deep storyline, filled with character development, as well as the strategic elements of combat that require careful planning—typical of the Super Robot Taisen series.