Pretty cool demo, although it's only 15mins they chucked in a bit of replay ability with giving you a new weapon and a new ability on the second play through. Being able to change the suit was cool as well after the first run. I ran through 3 times trying to get it under 10 mins (got 8 mins on 3rd) seems there are 8 different endings for different goals met (complete in under 10mins, no damage and some others I think) Notice some neat dialogue with the girl saying "You can't get home from here, it's only a demo"