The theme was spot on , and you got the movement just right!
A few things that could make it even better:
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Wing collision should be removed ,it makes the game feel unfair.
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The difficulty is a bit too high right away ,maybe start with a bigger gap?
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Some sound effects & music would help a lot! A flap sound, a hit sound, and some chill background music would make it feel more polished.
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A little screen shake or particles when hitting obstacles would add some extra "juice" to the gameplay.
Overall, great concept! Just a few tweaks and it’ll be even more fun! 🚀