However, if the player loses a jeep, he will revert to the initial grenade launcher instead of being downgraded to its previous level. The grenade/missile launcher only needs to be upgraded three times to reach its maximum power rather than four.Each stage features a different boss awaiting at the end, which include enemies not seen in the arcade version such as missile-spitting statues, a battleship and a new final boss (a giant flamethrower equipped tank which can be destroyed effectively by machine gun). The game is now divided into six stages instead of taking place in one long level.The player has much more space to maneuver due to the change from a vertical orientation to a horizontal one.Player 1's jeep retains the standard green coloring, while Player 2 controls a brown jeep. The two player jeeps are now colored differently due to hardware's graphical limitations.The NES Jackal has the following differences from the arcade version: under the title of Top Gunner, Konami decided to release the NES version under a different title to avoid confusion with their video game adaptation of Top Gun. Despite the fact that the arcade game was distributed in the U.S. Jackal was released for the Nintendo Entertainment System (NES) on September 1988 in North America. They have been given a mission to drive two armed jeeps into hostile territory in order to rescue and extract POWs. The team is composed of Colonel Decker, Lieutenant Bob, Sergeant Quint and Corporal Grey. The Jackal unit is an elite group of four soldiers that have undergone a harsh training regiment to survive in any environment.