The blowfish gun is a scientific weapon with darts that contain the neurotoxins of a Blowfish/Pufferfish. When used on an individual, the cause of death is heart attack or cardiac arrest. Making most deaths seem like a natural cause.
The Blowfish Gun is a starting superweapon that shoots poisonous blowfish toxins. These move at a decent speed, deal good damage, and poison whatever they touch.