for a 13 year old's first game jam, which I assume that's what this is, the game is pretty darn good. The fact that you had animations that reacted to the players direction and a boss battle is amazing for someone so earlier in their development career.
I do always try to give some critical feedback (only because no product is perfect, and constructive feedback is a great way to help a developer know where to improve). But instead I will make a suggestion on where I would suggest you focus your skills next, and that would be audio. Sound can really help make a games atmosphere. I did see you had some for landing, but for your next game try adding sounds for every action and some background music.
Again, nice job. congrats on finish this, especially at 13 years old.