@bot
It wasn't designed for phones — it relied on sounds heavily to make the atmosphere scary, but of course it doesn't work if you play it on a bus using phones built-in speakers, that is why the game has failed, although the idea was good.
You couldn't fight back in that game, all you could do is to run away towards well-lit areas where you could still be safe for some time.
Your post reminded me of this game, I can't recall its name unfortunately.