it was completely black, with white graphics, mostly circles. you controlled a small ship with the mouse only, there were no keyboard interactions. you had to fly around and shoot different growing parts of the screen, and different hits gave your ship different powers. it had haunting music, and about 70 levels. this was maybe 3 years ago, I can't remember the name of it, and cannot seem to find it online. not only was it mouse only, there wasn't any clicking either - it was only the position of your mouse that controlled the game.
im not sure what sight it was but i was trying to find it , i played quit some time ago , but you was a stick man , and you had to fight through this
series of enemies that grew stronger, and as you did so , you would gain a currency to use and xp, i cant find it anywhere, it had pretty good graphics and great animation from what i can remember