Sanshiro's character is significant because it did not evolve from (or into) an actual game franchise. Developed solely for a span of roughly twenty commercials aired in Japan from 1997 through 1998 for Sega Saturn, Sanshiro would never truly transcend his TV roots; and would be limited to a few game cameos and a popular theme song turned music video. Nevertheless, this parody of legendary judo master Sanshiro Sugata continues to live on through YouTube and the like; a marketing device begging to be recycled.
R.I.P. (More here)