Thanks for checking it out! The best I've been able to get is 3780 but I had to practice the level about 20 times in a row to get it and I think it's possible to get higher.
The levels were definitely something I wish I had more time for. The game actually does have all the code needed to handle multiple levels and I had originally planned to make them 3-5m each but ran out of time. I thought it would be easier to build them but I didn't have a way in editor to see the range of ship movement along its path which made level design a bit of trial-and-error. In hindsight, I could have definitely found workarounds for that though.