In the newest Mortal Kombat, (Deadly Alliance) there was a character named "Kano" who did "Aikido." However, that game kind of sucked, and so did the character. It was all lame sacrifice throws and maybe an iriminage-esque thing, but generally pretty lame Aikido.
Kano. According to Wikipedia: "Kano is one of the incarnations of evil."
Peace,
Tom Newhall