itch.io

That'd be great, sorry if in my comment I came off a bit frustrated btw, but my brain kept messing it up. Having finished the whole thing now, I have to say this was some really good game design.

I seriously wish there was a way to change the controls, the game is pretty fun but it's so annoying having to press z of all buttons to jump. Wouldn't up arrow or space bar make more sense?

Nah, it's probably a secret ending.

The game itself is really well made, personally I don't like the story but that's a personal thing so I can't judge it for that. However, you don't really get to read the text as your goal is to rush.

On mobile I have managed to get the key, on my laptop however there seems to be a problem.

There are countless of people doing the same thing on youtube, I don't think it would be illegal for you to do so without permission as you don't claim it as your own and perhaps give credit to the creator.