Hamtaro: Ham-Hams Unite! was developed by Pax Softnica and published by Nintendo for the Game Boy Color. It was released in Japan on April 21, 2001, North America on October 28, 2002, and in Europe on January 10, 2003.
The game Hamtaro: Ham-Hams Unite! was developed by Pax Softnica and published by Nintendo for the Game Boy Color. It debuted in Japan on April 21, 2001, followed by releases in North America on October 28, 2002, and Europe on January 10, 2003.