To make hy scores on most of shooter flash games you can use: JitBit Macro Recorder

Put this in your download manager:
http://www.jitbit.com/files/MacroRecorderSetup.zip

Generally most of shooter flash games have fixed points where the thing you must shoot appears….
So use the program above to record the mouse clicks at those points, set the timeout to 0 to all clicks and …there you hve it.
Start the game and also the little script …….and you got a High Score.

Happy shooting