Nintendo

Poison (ポイズン, Poizun) is a fictional character in the Final Fight and Street Fighter series of video games. Created by Akira Yasudafor Capcom, Poison first appeared in the original Final Fight alongside a similar character, Roxy, later appearing in Capcom-produced games, media and merchandise related to the Street Fighter franchise. She is voiced by Atsuko Tanaka since the Street Fighter III series and Masae Yumi in SNK vs. Capcom: SVC Chaos.

Originally conceived as a female thug in Final Fight and part of the game's antagonist group, Mad Gear, concerns during the game's development about reactions from North American audiences to fighting women led to the character being re-imagined as a "newhalf". However, that was not considered satisfactory and both Poison and her palette swap Roxy were replaced by the male characters "Billy" and "Sid" and have been for every subsequent North American port of the title on Nintendo consoles and handhelds. After the Final Fight series, she later appeared alongside wrestler Hugo, acting as his manager, with her schemes revolving around finding a tag team partner for him or developing their own wrestling organization. Poison first appeared as a playable character in Final Fight Revenge. She was also to appear in both Capcom Fighting All-Stars and Final Fight: Streetwise; however, the former was canceled and she was omitted from the latter as development progressed. Following those aborted attempts, she ended up appearing as a playable character on Street Fighter X Tekken. She was also added as a playable character to Ultra Street Fighter IV.

The character's potential status as a trans woman, consciously left ambiguous by the developers, has remained a topic of frequent debate by both fans and media alike.

Poison has been featured in various promotional Street Fighter related artworks, as early as Street Fighter II. Additionally she has been used as a cameo character three times in the Street Fighter Alpha series. In terms of merchandise, an immovable model was being made for the 2008 Capcom Girls Collection line of figurines by Mitsumasa Yoshizawa, using her Final Fight attire and at 1/6 height, standing nearly 11 inches tall. A similar model was released later on, identical to the previous figurine except with her giving a thumbs down gesture and darker colors. A version with blonde hair was later released as well. In Capcom's press kit for the 2010 release of Final Fight: Double Impact, a pink hair spray was included in tribute to the character, with the text describing it as "For men, women, and everything in between." Capcom later featured her as one of the characters for their Capcom Girls 2011 calendar.

In February 1991, Gamest magazine named her one of the top fifty characters in video games of 1990, placing her twenty-sixth on their list. UGO.com ranked her thirtieth on their "Top 50 Videogame Hotties" list, citing her as "one of the most controversial video game characters to date." Former Tips & Tricks executive editor Wataru Maruyama cited her design as an example of how an outfit is worn compared to its complexity can make a character memorable and stand out, stating "to use a phrase I don't particularly like to use, she totally worked it." She has also been a subject drawn by non-Capcom artists, such as Falcoon. GameDaily ranked her twenty-third on their "Top 25" list of their favorite Capcom characters, stating of the characters in Final Fight "The Mad Gear gang is a feisty bunch, and we could've picked anyone from the list ... Instead, we selected Poison". GamesRadar named her one of twelve Street Fighter related characters they wished to see in Super Street Fighter IV, arguing that her status should not be an issue against her inclusion and that the character deserved another stand-alone appearance of her own. Later, GamesRadar included her in the list of "The 30 best Capcom characters of the last 30 years". Joystiq named her their favorite character of the Final Fight series, stating that her "hypersexualized appearance and random flipping" made the character memorable, and that the controversy over her gender made the character even more so.

As the exact nature of Poison's status as gender-variant has been left deliberately ambiguous by Capcom, the topic has remained a popular subject for debate among fans and gaming media alike. Electronic Gaming Monthly's Eric L. Patterson described her as being a significant character to the trans community, and a perfect example of how it is "so awkward when it comes to knowing how to deal with characters who aren't white, male, and heterosexual" in video games. Complex pointed her out as an example of stereotypical depiction of trans sex workers, listing Poison among The 15 Most Stereotypical Characters in Video Games. GamesRadar commented "Poison holds a distinction as one of gaming's first trans characters, which began as a strange choice in localization but has become a part of the character that she wears with pride. If you take issue with it, that's your problem, not hers. It's that kind of confidence that makes her so appealing