I really liked the moving columns, they added another layer of unexpected difficulty. I lost at 23 (8388608). The fact that the moving column would bring the flappy tile beyond the bounds of the playfield was a little disconcerting.
One thing I've been wondering is whether all these 2048 clones are subconsciously causing people to take notice of powers of 2 far more than they would otherwise...
Haha, I have a super-wide monitor in a vertical configuration, which makes this game literally impossible unless I shrink the vertical dimension of my browser window.
In flappy48, are there some cases where it's impossible? Because the pipes are randomized (unlike the original Flappy Bird, I think? Never played it, but my understanding was it was always the same sequence) - by the time the first pipe appears, you might have already flapped to a position you can't recover from.