Wow you surely have talent for this, I can see that you have fun making this game and that's the most important thing! Your game is ovbiously not perfect on a technical level but there is something that makes it memorable perhaps it is because it is genuine, in the best possible way.
The only feedback that I want to give you is to don't assume that the player will figure out something if you don't say it: like the double jump or the mouse selection for dialogues.
Anyway, it was a really enjoyable experience and I hope you will continue to technically improve to make games!
If you try mine, let me know what you think!