Nice visual style, feels polished. Although, I agree with the other comment about the music, I thought there was a bug that caused it to stop playing. The duck sound effect is great though.
I'm not sure what exactly the issue with the music is, someone else also told me about it and I don't get it, the music is supposed to last 20 seconds just like the levels. Maybe the game is lagging for you? I might've pushed GameMaker a bit too far lol