hmmm... *the game is tiny*. and *the game is very simple*. and i love it a lot nwn.
B U T....
-you can add fullscreen mode with F4 or F11?
-you can make it better the plane loop sound to not make it annoying?. like... make a little snd that fits the beginning with the end... like. the snd ends, and when starts again it will continue from the end uwu.
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edit1:
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or...
-make a background song/music.
-make a snd for moving up
-make a snd for moving down
-make a snd for "pass throught those things"
-fullscreen().