Woah, hi Quick, didn't expect to see you in here!
Mall of Asia is huge. And you can get lost easily, because each section looks the same. You could eventually check out the arcade scene in there as well. But you are around MoA, then you should go for a walk at the bay when it's dark. It's very atmospheric and nice to spend a few hours there.
It being busy I really find nice, it's a very lively place, and stuff is always going on, day and night. But be careful with your stuff and what you wear, and also bring some kind of blanket you can cover your mouth with. There are literally places were the pollution is so bad, that you almost can't breath.
I love Manila and I am going there again this coming April, and I'm gonna have to watch the premiere of Captain America: Civil War in either Manila or Ilocos. I just hope there's no Tagalog dub, seeing that English is an official language there too.