How to get high score (10k+)
I probably shouldn't say this, but this is how to get higher scores.
I find that if you get under about 5k, just keep pressing retry till you get a fairly straight map.
Then, once playing it, for the more sudden juts, you can hold down the arrow buttons to move left/right faster.
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At the guy above, you get points from the red ones depending on your current score,
and the orange ones give you 10 more HP. (You start with 100)