So... It's whack a mole, but you made it people and phones instead of moles. It kind of takes away from the "alone" theme you started with, because they will continue to get calls every few seconds until the player decides to stop playing a minigame.
I know I can just change the system time and all but... Why? Closing the whole game off because it's a certain time of day? That's just bad game design. Adding bonus content based on the time is a much better use of such a feature.
*Spilers* So... The secret is something I already thought might be true? That free-will isn't a thing? I put it differently though, and don't use quantum mechanics in a way I'm not sure they're supposed to. It's physics, pure and simple. Given all of the formulae, rules, variables in one unit of planck time, and enough time to work, you could calculate exactly what would happen in the next unit of planck time.
At least that's my hypothesis.
I'm hoping to make the next game in HTML5, so hopefully you'll have a better chance at that :)