10:00 PM: Alright, let's do this!
5:00 AM (after I beat it): My head hurts.
My head is throbbing as of writing this review. I had a LOT of FPS issues when playing this game, even when I wasn't full screen. I couldn't even watch the ending cutscene. But other than that, this is one of the most addicting and fun games I have played out on Newgrounds to date. I did not stop playing the story campaign until just now.
5/5 Ibuprofens, because that's how many I will be taking right now.