I got started with Arkham Origins not that long ago, and still haven't done the first main mission after leaving the Batcave near the beginning (because there's a crapton of side stuff you can do then, and you know how much I love me some sidequesting). And when they say this game lacks polish, they mean it. It's not terrible (at least not yet), but the problem is indeed that Arkham City exists.
But here's the dumbest thing I've seen in a game in quite a while. Let me try and make it understandable for those of you who have never played it. There are four sets of 15 optional challenges that you can do, and they give you upgrades, achievements, etc. once you progress far enough in each set. The 15th and final challenge in one of these sets involves stopping randomly spawning crimes in each of the game's nine districts. The problem is, it only starts counting once you've completed challenge 14, as you HAVE to do the challenges in order. One of the districts involved is the Gotham Pioneers Bridge, where one crime happens as a kind of pseudo-tutorial very early on. However, this is the ONLY crime that will ever happen in the area, and it's entirely impossible to have already done the first 14 challenges by that point. See where I'm going with this? By the time you reach challenge 15, no more crimes will ever happen in one of the nine districts (that being the bridge), which makes this challenge impossible in a single playthrough. You need to take care of the tutorial in New Game+ to get it. But that's horrible design, things like this should ALWAYS be doable in a single playthrough!
But wait, it gets worse. There are two ways you can bypass this stupid restriction and get this challenge on your first playthrough. One is to stop a crime elsewhere and hope a bug is triggered that makes it count as a crime that happened on the bridge. (Yes, there's actually such a bug. Holy crap. Gotta be how the testers did it, and they figured nothing needed to be changed.) The other is to go to the nearby Sheldon Park district, and when a crime spawns there kill all but one guy, start running towards the bridge, then when the game considers you're in the bridge area, kill the last guy there. And IT WORKS. I did mention this game lacked polish, right?
(On the flipside, you can fling enemies to the moon with a multi takedown if the physics engine feels like it, which is to say rather often. Can't do that in Arkham City, no siree!)