All it needs is to save your high score so that I don't accidentally tap the game over screen on the frame I die; i wanted to keep playing past the required score, but then I'd get punished for it by having it reset...
Also technically iirc the original game was taken down because the dev didn't like what their game was doing to society, but it's hard to fault a bit of dramatization. I'm less versed on the history of the other games as well, so I wouldn't know how much of it is made up.