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The single "Tottoko Hamtaro", which also includes the song "Ni Hyaku Percent no Jyumon", was released on September 30, 2000 under the Nippon Columbia label.
It was used as the first opening theme song for the TV anime adaptation of the manga series Hamtaro, used from episode 1 to episode 52. It was succeeded by "Hamtaro Tottoko Uta ~Tsuzuki Dechu~" from episode 53 onward.
