Good work on this. I cot stuck near the beginning because I moved a crate in the wrong direction and there didn't seem to be an obvious way to restart the level without restarting the game :(.
Oh! I didn't even see it since it blended in with the background. Maybe (when you can update the game after the voting) change the colour some so it's more apparent? I thought it was tiled background since it's the same colour as the walls of the background :/.