How do you win wack a moustachio in left for dead 2?

Answer 1

well you start the campaign at dead carnival, if all you want is that achievement then start at the chapter "roof tops" then before you walk in the little area where you open the gates turn right, keep walking until u get near the wack-a-stashio or something like that, then get a melee weapon and start the little game by pushing X or something. then keep hitting the moustache's. until u break the machine...or once u reach the max points on the little game..i think its like 42?? but once u beat in it will make a lot of sound and you will automatically get the achievement