Can you actually repair your space ship? I collected some batteries (or sorts of), but I can't figure out if or how I can use them. After walking for maybe two minutes or so in one direction I hit an invisible wall, so "at least 1 hour of gameplay" is a bold statement.
What I found annoying is the time you have to wait for the jumping animation to finish before you can jump again. Jumping is the core mechanic in this game so far, so please make it more accessible. Also it would be great if objects you hold would switch sides whenever you turn around. That way building towers of platforms would be much easier and less cumbersome.
I do like the visuals and that you placed some trees in a background pane!