Is there a person who owns a analogue interactive cmvs? does the owner noticed a click sound in metal slug 1 when you fire the standard gun. the click sound is in the original mvs catridge and in the 161in1. when you compare it to emulation you do not hear the click. does i come from the modified MV-1C board? Maybe the volume is too loud. When something is too loud then the sound is clipping which makes the click when you fire the gun. I do not know it. Maybe someone knows more.