Borrowing ideas from Terry's game Sine Wave Ninja. Now it is using the mouse to move side to side and shoot up or down.
I don't tend to be very good at video games, but for me 250 is better than most attempts, 450 is woo yays, and 555 is my personal best so far.
Name/story came from staring into space not thinking of anything for a good while then giving up and just seeing what came out as I started typing.