I'm not sure if I missed some mechanics but all I figured out was jumping, and was able to make it to the end screen. I think the idea is very interesting and I did think that the visual effects on the fire/shadow was cool!
It sounds like you have a lot of ideas about the finished product, and it sounds very ambitious! I can tell from what you've written that you maybe didn't have all the time you wanted to work on the game but it also sounds like you have a lot of passion for working more on it which is fantastic! Good luck!