In December 1999, a Game Boy Color port of Dogz (also known as Dogz - Your Virtual Petz Pals) as well as a companion port of Catz was released.

Though the game was simply titled Dogz, it was not a straight port, displaying more features of Dogz II such as Dogz being referred to as real-world breeds and some animations of the in-game sprites being rotoscoped from the familiar Dogz II-and-onward animations. The illustrations on the box art are taken from the Dogz II packaging.

The sprites are of noticeably lower quality than Catz, with few animations taken directly from the PC games.