(キン肉マンⅡ世, Kinnikuman Nisei) Released in 2001 alongside Ojamajo Doremi and Digimon Tamers. The fans Shimada-san and Nakai-san are based on Kinnikuman creators Takashi Shimada and Yoshinori Nakai (Yudetamago). The ending theme, "Muscle Beat", was performed by famous martial artist Nobuaki Kakuda, who also provided the opening narration. Where in the timeline this fits in is a bit uncertain, but it would seem to best fit in after episode 5 (where Mantaro designs his T-shirt) and certainly before Barbarian's death in episode 10.