Calculator problems? – Totally Free-Space Bingo! Review

Today I got hooked on this game because I want to see what happens to the points. Most of the time it goes down to 100 points for the last balls needed. However, every now and then the counter decreases and then increases again sometimes crediting the player, sometimes forgetting to add it to the score. But when the game shows 1 billion as a final game score and this number is not credited, so disappointing.
Review by pattonsu on Totally Free-Space Bingo!.