The key innovation of Fatal Deth III was its abrupt shift in control scheme, away from the common direct-brainbase jacks of the day and toward more abstract methods. Players would guide Mack's actions loosely--by designing flowcharts, for example, or moving furniture around in their own houses. Mack invariably responded to such stimuli by inflicting violent injury on passersby in-game, but Fatal Deth III nevertheless sold billions of installs; no successful Virtugame would ever use a brainjack again, and it is rumored that the style influenced the pilot-interface geniuses at [Ryne Shipyards]?.
The sequel, Fatal Deth X, would not see completion. After a few enterprising youths discovered that Mack responded equally well to their injuring actual passersby, the principals of Shion Bug were quickly sued to death.