Tim also entered Arkham City himself a couple of times.
The first time Robin entered Arkham City, he ended up jumping into a fight with Harley Quinn and Joker's Henchmen after he saw them jump some inmates for their medicine.
As the assassins vanished, Batman chastised Robin for getting involved, and insisted that he had it under control.
Batman then asked why Alfred had sent him, to which Robin explained that he was worried about him.
As Batman was looking for Ra's al Ghul by following one of his assassin's blood trails, he was ambushed by three assassins.Robin was then given a vial of Batman's Titan-infected blood and was ordered to analyze it and to start searching the hospitals and emergency rooms in Gotham, as Joker's infected blood had been planted there.Robin stated his intention to do that and come back to Arkham City to help Batman.Eventually, Robin tracked Joker and Harley down to the main tent and assisted Batgirl in stopping them.Joker attempted to shoot Robin before he fled, but he was pushed aside by Batgirl at the last moment, which saved his life.Later, after Robin awoke, Penguin revealed himself and claimed that they were in a fight to the death and whoever won would join his gang.The battle started and Robin noticed that most of the inmates were brawlers with no previous experience.That was presumed to be one of, if not Tim's first outing as Robin without Batman as in addition to being noticeably cockier, more hotheaded, and more quick to jump into fights without observing first compared to his appearance during Arkham Knight.Robin also seemed to be lacking confidence in his own skills, suggested calling in Batman at the start of the incident, was unable to disarm bombs, had to call in Batgirl to do it for him, and was unable to act on his own without orders from Batgirl.Tim Drake was in the audience when the Flying Graysons were murdered, and where he witnessed Batman leap to the scene.Inspired by Batman's heroics, Tim closely followed the chronicles of Batman and Robin.