I think there's a lot of potential - it's pretty addicting initially, but since the difficulty stays static and there's no time limit it gets boring pretty quickly. Here's a couple of suggestions I have:
-Add some sort of time limit. This will give the player an incentive to be greedy so as to score as many points as possible, rather than just holding in place for as long as they want.
-Increase the difficulty over time with more obstacles. I made it to 74 points, but I didn't see the game get any harder.
-Alternatively, speed up the game over time.
-Maybe have something like a shield upgrade drop to protect you against a single hit, or occasional bonus coins that you can pick up for extra points.