Nice work!
The flying is quite enjoyable, though the health bar is quite choppy, I often find myself letting go of the mouse while on low health, and then dying anyway because I ran out, but it didn’t reveal this until a half second later. Maybe make the health bar smoother?
Also, I recommend making the gas cans double as a save point, I find it quite annoying to constantly restart the whole game after failing on one specific level, especially when I made good progress.
The game is still quite nice, though. Keep up the good work!