character in the crossover fighting games Marvel vs. Capcom 3: Fate of Two Worlds and Ultimate Marvel vs. Capcom 3. She is also a boss character in Street Fighter X Mega Man. Designed by Daigo Ikeno, Viper was designed around the concept of a 20-year-old single mother. Viper was designed based upon marketing research on what sorts of characters an American audience would enjoy playing. She was tailored towards Western tastes, as an experiment to see how audiences would receive the character. Street Fighter IV executive producer Yoshinori Ono has described her as the most "unorthodox" of the four new characters introduced in the title, emphasizing this aspect as one he felt would appeal to American players. She was reportedly his favorite character when the game was early in development. In response to claims that the character resembled one found more commonly in SNK developed games, Ono retorted that the resemblance was unintended, and that she was created from the best parts of several proposed designs during early development. He went on to state that she was also an attempt to create a character with a "cool" design, which he feels are predominant in SNK titles. Writing for VideoGamer.com, Wesley Yin-Poole described Crimson Viper as looking "ridiculous", and called her a "SNK character lost in a Capcom game". Simon Parkin from Eurogamer felt that the contrast did not quite fit with the game's aesthetic. Todd Ciolek from Anime News Network felt the character fit comfortably in the "Street Fighter mold", in spite of her design's deliberate similarity to characters from the King of Fighters series. A reviewer for the New Straits Times described her as the best of the new characters, praising both her appearance and attack arsenal. GamesRadar stated that while her fighting style made her feel out of place in the series, "that's why she adds so much to the game". IGN AU praised the character, stating approval for the variations of her attacks. AJ Glasser from Kotaku listed her as one of the worst mothers in video games, placing as the worst one from fighting games. UGO Networks ranked C. Viper at #21 on their list of "Fighting Games' Finest Female Fighters", commenting on how she shoves her tie between her breasts and her bright red bouffant. The Guardian ranked her as the 20th top Street Fighter character in 2010, with writer Ryan Hart highlighting her technical