Okay, I beat both levels! The game is pretty nice, the mechanics are pretty good!
Controlling the character however doesn't feel very good, it has weird behaviour when colliding with a wall and I'm pretty sure there's no coyote time (which I recommend adding!).
Other than that, I think inventory menu doesn't grab focus for the buttons on keyboard, as I always have to click on it with mouse first.
All in all, the game is good, but could use a bit more polish!