Not good.
1) hard to click menu buttons. set it so that you can click on the entire "Start game" rather than just the outline of the letters
2a) Decreasing score for letting scissors fly by, understandable, decreasing score for missing with your shots, horrid idea.
2b) Negative score possibilities is not a good concept
3)Pet Peeve: clicking to fire each individual shot is not fun, although I can somewhat understand why you did this here.
4) Grammer errors "We are congratulate !" Should be "Congratulations!" or "We congratulate you!"
5) No music or sound
6) When you die, there is no apparent way to return to the main menu.