It is a bug. As explained above it has an impact on the trial and it also makes the Steam achievement for getting a High Score meaningless (though that this isn't a difficult achievement anyway).
I never could do that with a trial on my droid. I can play until a "Score Limit" box pops up and then either buy or quit.You can put your initials as the grand champ on the trial table at around 1.5 million or something.
Except it doesn't affect the trial. You can put your initials as the grand champ on the trial table at around 1.5 million or something.