Origin
Her origin has gone through various versions depending on which company controlled her rights, but she is generally shown as cloaked in mystery. She is one of the G.I. Joe characters whose identity and background are generally classified. Like Lady Jaye she is a Bryn Mawr. On a journey to Japan she discovered a family tie to a ninja clan.
Creation
Shortly after her first appearance as an action figure in the G.I. Joe toy like, she appeared as a character in the Marvel comic series for G.I. Joe in 1987.
Character Evolution
Despite being a relatively popular character since the 1980s, the character has generally undergone little character development (though this is generally true of all G.I. Joe characters.) The most substantial is that she is revealed to possibly be related to Storm Shadow.
Major Story Arcs
Marvel
She plays a significant role in numerous G.I. Joe missions though she is rarely featured as a primary character. These include helping to free captured Joes from a Borovian gulag as well as partaking in the Cobra Civil War. She later joins Ninja Force.
Devil’s Due
After acquiring the rights to the G.I. characters from Marvel, the same story lines were continued. Due to an unsuccessful run in terms of sales, the team eventually disbands (after she has been involved in a mission to Cobra island where two of her teammates died). The team later reforms, but as a smaller group of which she is only a reserve member. She appears in a number of martial arts themed series.
IGW
After the rights to the characters were acquired by IDW, the entire group was rebooted. Jinx is shown again trying to infiltrate the team, though she soon becomes a member. She was featured prominently in the Danger Girl/G.I. Joe series.
Skills and Abilities
Jinx is an elite hand-to-hand combatant and is skilled in military tactics. She is also an excellent athlete capable of a variety of difficult physical tasks.
Other Media
Like most G.I. Joe characters she is featured across a range of media, including the toy line, cartoons and live action movies.
Other Versions
Danger Girl/G.I. Joe
After the acquisition of the Danger Girl characters by IDW it was decided to first launch the characters under the IDW banner with a crossover with one of the major properties at IDW, G.I. Joe (as they are owned by the same company it seems possible that these characters exist in the same continuity, though this is never confirmed). The series starts off with a dog chase involving Scarlett and Flint and they are soon shot down. It is revealed that they were providing escort for a shipment of rediscovered missiles with great destructive power.
They are soon shot down though and the missiles are taken by Cobra, who also take the two prisoners. Once in Cobra custody they come across Abbey Chase who is acting undercover, though the two members of G.I. Joe do not know this. Elsewhere the American president arrives to the USS Flagg and informs the Joe team to stand down and to not seek to free their teammates. General Flag orders them to stand down. The remaining female members (Cover Girl, Lady Jaye and Jinx ) come up with a plan where they will contact the Danger Girl team (Cover Girl had previously met Johnny Barracuda).
The team shows up and exposes the U.S. president as Zarana in disguise. Soon enough it is revealed that the Danger Girl team already has an operative in place and she informs them of the plan. Firefly is to head to Moscow and detonate one of the missiles while Major Bludd is to go to Beijing to detonate another. Three teams head out, one to each of the two cities and the third to the Cobra base. By now Abbey is under suspicion of Baroness, Destro and Cobra Commander and is captured by Zartan when she attempts to free Scarlett and Flint.
While they are trying to escape a team of Low Light, Snake Eyes and Stalker arrive to free them. Meanwhile in Beijing a team of Jinx, Johnny Barracuda and Sonya Savage stop Major Bludd while a team of Sydney Savage, Cover Girl and Roadblock stop Firefly. It is soon revealed that there is another missile which is headed for the homing beacon which Zarana has placed on the USS Flagg. Silicon Valerie, Duke and Lady Jaye quickly deal with it. Meanwhile at the Cobra base Storm Shadow has arrived to stop the Joes and he engages Snake-Eyes in combat. Eventually this group is also able to escape, while blowing up the base and they are all reunited on the USS Flagg.