Crazy Flasher 2:

You are the strongest fighter in the eastern sector of the Chendu Industrial Park and your mission is to become the best fighter in the world. You play the role of a contract killer in Crazy Flasher 2 where your objective is to eliminate the hooligans that are after you or kill the thugs for whom you have received assignments. Use the W key to move up, A key to move left, D key to move right, S key to move down, press N key to jump, use B key to attack, M key for special blood attack, and press spacebar to select weapons.