Great Game
I really enjoyed playing this game. It took me a few days (due to short attention span) to finish this, getting stuck a few times in the 20s. Some of the higher levels, though, seemed too easy. What I mean is I think the order level could be tweaked a little. Other than that, great game!
As far as people getting stuck at 16, I thought it was easy lol. Level 17 and some 20s is where I got stuck for a bit lol