Pretty cool game! I especially liked the animations! The background music was also pretty fitting and the overall experience was very fun!
I found some bugs however like at one point i was on the edge of a platform in mid air but i was not falling or my double jump would not work at times. I would also suggest some kind of damage indication because when i get hit i can barely notice unless i look at my health.
Other than that i think you have a solid, interesting game!