The Jihad Grenade is a weapon introduced in multiplayer, and found exclusively for single player in the original A Week in Paradise. It is a much more powerful type of grenade, and as it is about to explode, the stereotypical terrorist "Alalalalalalalala" is heard. This weapon is quite rare to find in locations. Bystanders can be found using it occasionally on Insane-o or Really Fucking Hard Difficulty.
- The Jihad Grenade appears to be based on the Holy Hand Grenade of Antioch, featured in Monty Python and the Holy Grail in which King Arthur uses to destroy the Killer Rabbit of Caerbannog.
- A workshop mod has been made that restores this item in Postal 2 Complete.