At first I played this without sound, and holy cow the music made a big difference! The game is satisfying and fun, and has a nice difficulty curve. I played it until i’d nearly upgraded everything!
To improve the project I’d focus on gamefeel, and the near miss mechanic. The near miss mechanic was the part I had the most fun with, and what kept me playing. What could you do to make near misses even more satisfying? A combo system, speed boosts, and particle effects come to mind. You could take inspiration from SUPERFLIGHT, in which you gain more points the longer you stay in danger. The 10th near miss in a short period could reward way more points than the first. Showing how many points you get for each near miss could also feel good.
Otherwise you could improve gamefeel by making the launch have more impact, for example by zooming out upon launch. You could also further emulate super toss the turtle by having fuel drops and only having the player lose after a few seconds without fuel. Oftentimes in super toss the turtle you think a “run” is over, only to barely stumble over a launch pad or something similar.
Thank you again for a great comment, and good luck!