Overview
Heavy Barrel is a shooter with a top-down view similar to Commando and Ikari Warriors. Terrorists have seized the underground control complex of a nuclear missile site. It is up to the player to infiltrate the installation and eliminate the leader of the terrorist army before they can launch the missiles. To stop the terrorists you will need the powerful weapon Heavy Barrel. The problem is that the weapon still is in the installation. Before the fortress fell the weapon was taken apart and locked in six different storage lockers. To defeat the terrorists you must collect all keys and reassemble the weapon.
The name of the game is from an in-game weapon. The Heavy Barrel is found in six pieces and is an energy cannon capable of destroying any enemy in the game with a single shot (except the final enemy, and possibly one other boss that may have required two shots). The weapon has a wide arc of fire and can be fired as fast as the player's trigger finger permits, but after thirty seconds its use is exhausted, at which point the bearer reverts to his previous weaponry. Best used to get past tough bosses, the weapon could be built several times in a single game (probably three or four times). In a two-player game, whoever collects the sixth piece is equipped with the Heavy Barrel.
