Here is my 100% Achievement guide and full walkthrough so you don't miss a thing.
This has to be done I believe, with a human enemy!
Not any random civilian will do.
Either way, you can get this on the farmer in level 1.
Simply press and hold
to have him in the air.
Let go while looking straight up, and as he's coming back down make sure to press
again to catch him.
Don't spam the RB button, this also may take a few potential tries to get right but is very easy enough
Go to 15:45 in my part 1 video to see where and how to unlock this
Hope this helps!
Part 1
Part 2