It's striking because of the psychological associations the viewer already has in their heads from watching the movies and games; the battle scene already exists so it's simply borrowed imagery, a port. Don't get me wrong though, doing this sort of thing is how we've all learnt the craft, but, if you're already competent enough to port that sort of content then you've got the skills to be using that talent to produce your own original content, like yourself and your visual acuity application. Brilliant bit of thinking that. You did exactly what I'm talking about here, rather than do justanotherFPS (JAFPS) porting some idea already in hundreds of other games, you used what skills you had and came up with something new and original based on a simple idea. And it works. Get that out AppStore and target health professionals and you could be onto a winner that has more 'meaning'.
Put it this way... if he were a member here (he won't be now lol!), he would have been encouraged to use his skills to manifest something more original, even if it were to use the 'Terminator' imagery... how about "Terminators in Love" - hot coffee anyone!, "Terminators Tea party" - just who is the mad hatter, "Terminators Day Off" - shenanigans on a day off work; something wacky or an odd take on the franchise.