Actually, there
is a Rurouni Kenshin video game. To be correct, there are
two Rurouni Kenshin video games.
One of the Rurouni Kenshin video games is an RPG while the other is a fighting video game (like Street Fighter). Both of the video games are for the Playstation, but also they are only for Japan.
cry This is the front of the case for the Rurouni Kenshin fighting video game:

This is the front of the case for the Rurouni Kenshin RPG video game:

This is the back of the case of the same video game as above:

(Note the words to the bottom left corner reading "For Japan Only")