MonoChrome gives you not one, but two heavily Geometry Wars-inspired shooters. One has you move around with the keys and aim and shoot with the mouse. The other has you move and shoot with the mouse, and you don't aim, which is kind of interesting.
It's not going to rock your world, but it is a fun way to kill some time if the boss won't let you bring your Xbox to work.
MonoChrome [Armor Games]
