The first thing is that I would add a button to the select ship screen to advance. Pressing enter is not intuitive when you have a button based UI at that point. I saw the comment here, and in the controls, but plenty of people will jump right in to play, and that could be frustrating.
I played several times. eventually I went left a bit and down, getting to an area where the gems were spawning, but black holes were not. Several messages showed up at the bottom such as "making things worse" and "slow down". The game eventually locked up. My score was at 626 at that point. I retried, and found I could consistently go down and left a short ways to escape the danger zone. Then I just held left until I hit the edge, before holding down to the corner. The I went right along the bottom, and was at a score over 500 by the time I started to see black holes, though things started to lag by the time I was at the bottom, and got worse from there. I stopped when I saw the black holes and tried to back track, but hit one, and then things locked up again. Here is the error from the console:
game.js:652 Uncaught TypeError: Cannot read properties of undefined (reading '176')
at lostlive (game.js:652:62)
at game.js:886:25
lostlive @ game.js:652
(anonymous) @ game.js:886
setTimeout
check @ game.js:884
gameLoop @ game.js:1011
I did not see any repair kits, and with a single hit destroying you, I'm not sure what damage they would repair.
The new ship sprites are neat, but the ship is small and the background dominates. The ship really feels like it is lost among the background. I'd make the background, at least around the ship, be something that contrasts with the ship so the ship grabs the eye. The whole background could get a slightly faded/semi-transparent look to it to help it feel more like it is in the background.