I've played through the entire game 7 times now (it's a short game if you don't look at everything), and there's no options screen to be found. The only 'option' is on the first screen in the game, which just explains how to enter fullscreen mode. Beyond that, the only actual menu in the game looks like this.
Since this is the first game I've seen which utterly lacks any sort of options (unless you want to count the sole menu screen as that), is it okay to just let there be no option menu screenshots?