i think a lot of people in this comment section are giving you way too much crap. heres what i have to say:
i enjoyed what i played, and its apparent you put in much more effort than a lot of the crap i see some devs make. i enjoyed the music a lot and the game has lots of charm, but i was having some difficulty telling the difference between the foreground and background. In a game with a night time city setting i would make the background black and dark grey, while all platforms have a white outline around them. this will help quite a bit. other than that, physics aren't always easy to get right so i won't grind you too hard on that, they could use some improvement, by no means is the game unplayable. i would consider lowering the gravity, fall gravity, as well as the jump height.
i hope you do more with this game in the future!