For solo in 7 days, well done! I found this from youtube, and I rushed to review to help :)
(I am not a full-time game dev or an expert) if I can help with some feedback, I would have added some more introduction/small tutorial. I did not understand what to do on each level, but I figured it out eventually. One time I got self-locked, and I had to restart the game, a pause menu would have helped! You could engage youtube’s viewer with some play-tests and gather feedback from them! That would be super cool!
The audio/music was well-fitted for a platformer, and the controls were well tuned. I don’t think this game has any bug. :) It is a good starting point! Keep it going :D