The Nintendogs universe is a real-time pet simulation franchise developed and published by Nintendo for the Nintendo DS. It was originally released in three different versions: Dachshund & Friends, Lab & Friends, and Chihuahua & Friends, which was later joined by a Dalmation & Friends version. It has been re-released twice since then, first as a bundled release with a special edition Nintendo DS with a new version called Nintendogs: Best Friends, and then again as Nintendogs: Dalmatian & Friends.