Bulletstorm wasnt all bad. If you are one of those srs Halo takes skill or CoD is the most original/best FPS ever you will probably not like it. It had flaws but I still thought it was worth playing. Very much worth playing. $60 to buy though? Eh. More like rent then keep it.
OT: There really isnt really a need for one, the game is not terribly popular, and it would just be WH and maybe an aimbot. The game is based on skillshots, so unless you made a program that could play the entire game for you, it would be a waste.