My friend had this game in his queue (he did not make a game for the jam) and he said it was the best of the bunch, so i had to check it out! i see what he meant!
The controls are really interesting, and flying through the caves is genuinely fun! I played it for a good 10 minutes, though I mostly kept failing at Level 4 :D
If you decide to keep working on it, it might make sense to combine the fuel and health meters? And adding a few obstacles would really give the game an extra boost.
But you've laid a really fun foundation!