In Marvel vs Capcom, Chun-Li is the original fast character in the Street Fighter series, utilizing multiple rapid attacks rather than the slow damaging strikes of larger characters like Zangief. Her agile and swift movements are a favorite amongst game-players. It is interesting to note that in the early days of arcade fighting games, many other female characters played in a similarly speedy style, following the example set by Chun-Li. In previous games (Street Fighter 2 mainly) she was basically a charge character along with Guile and E.Honda but her style was changed in later games to give her a more technical feel as well as her trademark "speed" granted to the player.
Chun-Li was one of the few characters to be able to air dash pre. Tatsunoko vs. Capcom. She can now perform an angled air dash in MVC3.
Morrigan seems to have a certain resentment and jealousy towards Chun-Li. In the Capcom game Pocket Fighter, Morrigan wanted to overcome Chun-li's status as the strongest and most beautiful female fighter.