One More Line is quite popular. But it needs to be improved. For example, it moves too fast. It should really start off slowly. The point scoring system is based on how long you survive. My high score is only 21, which I think represents only 10.5 seconds. Something silly: the one's look like 7's.
One More Line is free and comes with ads. Give it a shot. And if you end up succeeding with a high score, let me know.