In Armed and Dangerous, the player controls Roman, a thief in the Lionheads gang. The evil King Forge is attempting to unlock the Book of Rule, which will grant him magical powers. Aided by a blind seer and his thieving friends - a robot and a mole - Roman decides to intercept the book and banish the king.
The game is a variation of the run-and-gun third-person shooter. Created by Planet Moon, it has the same humour and similar gameplay elements as Giants: Citizen Kabuto.
The game has several unusual characters and weapons. Included is the shark gun, a device that literally shoots a shark at your enemies. There is a corkscrew device that burrows in to the ground and inverts gravity. You hang on to the device while your enemies fly into the sky and fall hard back to the ground.
Some magazine ads for the game took inspiration from the stickers from the game Hostages and had a large set of stickers which looked like bullet holes.
The game contains several references to Planet Moon's previous game Giants: Citizen Kabuto. Among them are
the "Majorcan Prophecy" (in Giants the Meccs tried to get to planet Majorca) and the "Dick Whittington Memorial Prison" (in Giants the player had to bust a guy out of the Dick Whittington prison).