It's a bit rough around the edges, but I like the concept. I can't say for certain what's wrong, but it seems like the popups for the notifications about what's a sight might be blocking clicks for the sights themselves, so if you're hovering a sight, you can't also click it, or at least I was unable to do so. I think the major control-related thing I'd recommend is limiting the distance you can travel per click - this would make it a little smarter when you click really far away. I liked the graphics and I think if there's a little bit more to it, it would be an interesting little game.