No Issues!
I’m playing this on a macbook air and it works fine for me so far. No GC issues either, although the game doesn’t show up on my GC game list. I’m really happy to have this awesome game for $4.99 too. :D
Update June 10th 2016: The game still works and it now shows up on my Game Center account. I do notice some lagging from time to time but it doesn’t bother me at all, I love this game!
pomangö about
Batman: Arkham City GOTY, v1.1.1