Is this unfinished?
Ten seconds into the game I hit an invisible wall, in a 2D platformer. Would it have bee so hard to make it a sheer cliff instead of a pile of rocks you clearly should be able to jump over? Or even just have the screen stop scrolling so you hit the edge? It's also really easy to get bugged onto pretty much any vertical surface by just jumping into it and holding left/right. At the start of the cave segment I jumped off the top of the screen and never came back down, so I had to restart.
This wasn't even a game. This was like the intro to a game. The story would have been served much better by a one or two page comic. Presented as a game it's just disappointing (and even a little insulting) because there is no challenge or agency, you just progress linearly to the end reading text boxes. This was about as interactive as turning the pages in a book, only less so because you can't turn back, and sometimes it glitches out an you get stuck.
All the atmosphere and world building effort is wasted when it abruptly ends as soon as it looks like something interesting might happen. Art's pretty good for what it is, though personally I find faux-retro minimalist pixel art to be played out and lazy.
In some other medium I might have enjoyed this, but presented as a game it just pissed me off.