Space Binvaders

Space Binvaders was 1st place in the ABBUC software contest of 2009. You control an a ship at the bottom of the screen. Scrolling down to you are various 8 bit values, expressed in binary 1's and 0's. Your job is to flip a value to 0xFF (11111111) by shooting bits from gun. When a bit hits a position in the binary number, it will always flip it to the other value (logical not). Once a value is fully 0xFF it will scroll down quickly off the screen (and you must dodge it).