[4][5] Multiple anime adaptations were produced by TMS Entertainment and aired on TV Tokyo.

[6] The success was not paralleled in the United States, however, with only the first series, some special episodes, three video games (though two others were released in Europe), and limited merchandise.

[7] The Hamtaro franchise has multiple video game titles with independent storylines.

NA: 23 September 2008 On 26 July 2020, a group of more than 2,000 protesters in Bangkok called the Free Youth Movement led a protest against the government of Thailand which involved singing the theme song for Hamtaro with modified lyrics to say "The most delicious food is taxpayers' money.

"[10] Other student protests during the same week continued to use Hamtaro as a symbol for the government's "feasting on taxpayer's money," and have involved groups running in circles, as if in hamster wheels, while singing the modified version of the jingle.