Complex sentence: Ace then went on to play a role in defeating the Joker in'in the climax of the movie, attacking the Joker and damaging the controls for the Joker's new satellite weapon system.
Split into simpler sentences: Ace then went on to play a role in defeating the Joker in'. In the climax of the movie, he attacked the Joker and damaged the controls for the Joker's new satellite weapon system.