[quote=@BlackSam3091]
What was Robinson park and why does it keep coming up? 
[/quote]
First UDC crossover event. Black Mask had distracted Batman with bombs planted all over the city that would blow in 24 hours. The Joker decided to use the crisis to promote anarchy and chaos with everyone coming to Robinson Park to burn money. Two Green Lanterns, The Question, Talon, The Teen Titans, and a few others decided to show up. It was a mess and a lesson of "just because you can doesn't mean you should".