Well, I enjoyed playing this game. it's quite simple and fun to play. However, I noticed a few things which you might consider polishing up ahead in order to make it super interesting to play. First, the pacing of the game is quite slow, then the player movement can be polished up more to give it a nice dynamic feel, currently, it seems like the player is floating in the air. Next, the music doesn't actually suit the gameplay, so try changing that. Also, the sound of the jump button continues to play if we hit it many times and the player is already on air, which looks really odd. It should be playing if the player is ready for jump and then it should not either take input or else execute the piece of code to play sound.
Will be looking forward to seeing more such awesome content ahead of time.