Sneeze Fest is a nice and simple game. It's not too difficult to understand, because the controls are very straightforward. I went through all the levels, because I honestly really enjoyed it.
I did have a couple of small issues. The powersspike of difficulty in the second level, compared to the first is a bit too much. Especially once you get to the third level and it suddenly feels easier than the previous one. Also, the indicator of the booger trajectory, lies about the bouncing when you hover your mouse over the railing.
Overall, I did enjoy the game. The levels, besides the second one, all felt consistent and I knew what to do after looking at them for not even a second. solid work!