Well, this clearly qualifies for artillery of the week. This three barrel potato gun uses electronic injectors to deliver propane to each of its three champers, ignition coils and spark plugs for ignition, and the entire unit, including pan and tilt control is controlled through PIC micro controllers by a gaming joystick.
The video has a ton of information on the device, but unfortunately only shows one shot, but if that’s not enough for you, you can make your own with the provided instructions*. I bet we’ll see more video of this potato gun sometime in the future.
* Check local laws regarding high velocity food products, and don’t blame me for the resulting accidents, lawsuits or potato famine.