Complex sentence: A.C.E.3 makes a departure in the A.C.E. franchise, by including Shin Getter Robo and Overman King Gainer, both super robots, as past A.C.E. titles exclusively contain real robots, and indeed the entire series was marketed as "Real Robot Action".
Split into simpler sentences: A.C.E.3 makes a departure in the A.C.E. franchise by including Shin Getter Robo and Overman King Gainer, both super robots, as past A.C.E. titles exclusively contain real robots. The entire series was marketed as "Real Robot Action".