Jeff appears in the arcade version of Double Dragon as the end boss of Mission 2. Prior to this, he is first seen in the opening sequence among other members of the Black Warriors when Marian is beaten and carried away by Williams. Jeff is a head-swap of the Lee brothers who employs most of the same techniques as the player, lacking only the ability to use weapons. Despite this, he is still tougher than the regular grunts and can escape from the player's hair grab when he still has enough health left, making him a very difficult opponent to fight when engaged directly. In addition to the initial boss version, grunt versions of Jeff also appears during the latter half of Mission 3 guarding the entrance to the gang's hideout, and at the end of Mission 4 to assist Willy during the final battle. These grunt versions of Jeff are colored differently from the boss version of the character. Jeff's mug can be seen on the wanted posters in Missions 1 and 3.
The name "Jeff" was first used for the character in the Master System version published by Sega, which was released a few months after the NES version. However, due to a localization mishap, Jeff and Willy had their names switched in the English version of the manual and most websites and publications incorrectly identify him as "Willy" as a result. Jeff's design in the Master System version is a bit different form his arcade counterpart, having a pompadour hairstyle similar to Billy and Jimmy's (instead of his original widow's peak), but with different eyebrows. In contrast to the green outfit he wears by default in the arcade version, Jeff wears a grey outfit and has a red shirt.
In the NES version, Jeff and the Mohawked Abobo (the other head swapped enemy in the arcade version) were cut from the roster, making them the only enemy characters who were not officially named by Technos. Jeff in particular is replaced by a new enemy character named Chin Taimei. Since licensed conversions of the first Double Dragon (namely the home computer versions) used the backstory and character names from the NES version, their manuals listed Chin instead of Jeff as an enemy character, regardless of who was actually featured in the game. In the Genesis port of Double Dragon, Jeff loses his unique face and appears simply as a recolored Lee brother. However, he is easier to beat in the Genesis version of the game since he doesn't escape from the player's hair grab.
Double Dragon II: The RevengeEdit
Jeff is one of the few returning enemies in the arcade version of Double Dragon II: The Revenge who retains his original design, the other one being Willy himself. He appears less sporadically in the sequel, only appearing three times in Mission 3 during the latter half of the stage in a red outfit and once in Mission 4 during the final brawl. His fighting style is almost unchanged from the first game, with the only change being the fact that he wields grenades in Mission 3. He was cut from the Mega Drive port of the game and only appears in some of the home computer versions as a recolored Lee brother.
The Right Arm enemy from the NES version is often considered to be Jeff's equivalent in that game, but it is unclear whether they're meant to be the same character.
Super Double DragonEdit
- Practices his own rough style of Karate. Has a cowardly personality and prefers to use underhanded techniques. He serves as a supervisor among the lower-class members of the Shadow Warriors. - Translated description from the Return of Double Dragon manual.
Super Double Dragon is notably the only time Jeff has appeared in the console versions of the game produced by Technos. In this game, he is a complete palette swap of Billy Lee with a bronze skin tone and a green outfit. He is a recurring sub-boss throughout the game, appearing at least once per stage until Mission 5, his final appearance in the game. As a palette swap of Billy, he has a similar repertoire of moves and can perform the hurricane kick at any time. Occasionally he wields a throwing knife, a konbo stick, or a nunchaku. He cannot be arm grabbed like the other minor enemies, but the hair grab does work on him.