After upgrading the Flashbang to Level 4, the name and image are replaced by the Fart in a Jar. The Fart in a Jar does far more damage to enemies and keeps them stunned for longer. It releases a green fart mist that may cause people to gag or vomit.
The Cheat for this weapon in Saints Row 2 is #930.
The Cheat for this weapon in Saints Row: The Third is "giveflashbang".
At only $250, the Flashbang is the cheapest grenade available at Friendly Fire in Saints Row 2, and are the only grenade available from Friendly Fire at the beginning of the game.
The Fart in a Jar was initially not supposed to be in Saints Row: The Third, as during development, Volition considered it to be too over the top.[reference?] However, after word of it spread, the resulting fan interest was so great that the weapon was put back in, and is present in the final version of the game.[reference?]
If a Fart in a Jar is thrown at a vehicle, any enemies inside the vehicle abandon it. This even works with helicopters, provided that the character controlling the helicopter is within range of the blast. This does not work with tanks, as there is no driver inside the tank.
During "Three Way", even with infinite grenade ammo, only 3 Fart in a Jars can be acquired.
Some law enforcement and SNG soldiers drop Flashbangs when killed.
If dropped, the Flashbang rolls as if spherical.
In the Japanese version, the Fart in a Jar is named "異臭ガス".