This wasn't particularly hard. Found a glitch. If you go outside the border of the game really fast it'll not register and you can move the mouse to the end. It's not a particularly hard game.
This game has a lot of potential. Tons of it. However, it needs another revision. It runs extremely slowly. An accelerate button that makes the game move 2x faster or something would be nice. I would also like to see a deselect function. Not a horrible game, but needing more to really polish it.