Harley Quinn Trainer game - Batman has vanished. The city of Gotham has a new defender to keep it safe. It's time to put an end to all the criminals. It's up to you to decide whether you'll be a hero or a villain in this story. The choice isn't as simple as it might appear. You need to not only know who the bad guys are, but you also need to determine if who you think are the good guys are who they claim to be.