The iGun functions through a battery-operated heating system. The battery gives off a big burst of energy, charging the ionizers. The ionizers then project heated oxygen forward as a bolt of plasma. This plasma moves at about three MPH (or about 0.04 KPH for you non-UnAmerican folk). This weapon has an efficiency rating of 4%, making it the most effective device Apple Inc. has ever developed. The idea of the iGun was later stolen to be used in Call of Ducky, though there were some minor changes. One of these changes, for example, was the fact that the gun was able to hit a moving target.