I like this a lot - The progression of fuel level dropping and air traffic getting busier is challenging and exciting. That interacting with the shield mechanic is clever and an interesting way to add choice and consequence, I really enjoyed it. The game is very addicting in that chasing a high-score is tempting! My only critique would be that the background visuals can sometimes be distracting or feel a bit intrusive, could just use a bit more contrast between background and foreground. Would love to see this fleshed out into something with multiple levels!