How can i do

a bullet thet goes in the diraction of his croser?
i mean like this:
1)
(-_-) -!- *

  1.          *
     -!- 
    

(-_-)

(-_-)=charecter
-!-=croser the move with the arrows
*=bullet
i know i need to do it with cos and sin but i cant make it…
tnx 4 the helpers