As deathbytroggles stated, to really give any details on how this game works would spoil it, so look below for spoilers. My advice: play it through the first time until you die, then play it again as many times as possible for 5-10 minutes (or until you achieve victory). Personally, I found it frustrating and gave up before reaching the end. While the mechanic is very unique, I just don't see any way this could get worked into a longer, more traditional piece of IF without driving everyone crazy.
(Spoiler - click to show)I believe this IF game is only about timing. There are no choices to make other than when you hit the next button. While I got enough different outcomes to confirm that hitting the button too fast or too slow changes the story (usually by killing you), the story wasn't sufficiently interesting for me to fine tune it enough to reach the end. Your mileage may vary.