It's a good start for learning, though the 30 seconds list item, well the game doesn't end after 30 seconds, and I am terrible at platformers, so it took a little more than 30 seconds, I wanted to know how to reach that hidden bit, which sadly didn't give me anything, so I was sad.
A mute button for the music, or volume option would have been a useful addition here as well, I often like to listen to my own sick beats when I am playing games. The sound effect you picked was good though, fit well, and everything seemed to work as you intended! Credit on your work here, keep on learning, look forward to what you can do in future!
2/5
<3
