Well, it works in the browser, but without explanation on the controls, it's hard to know what to do and how to do it.
You said it's your first game in Godot. You had 10 days, you should have spent more than 2 days on this, you would have made better graphics and got the collision shapes more accurate. It's really hard to recognize the items and to pick them up.
Still, for a start, it's not bad. Train more and your next game will be better.