Toraemon

Toraemon is a robot cat from the future, similar to Doraemon, but he is a prankster.
Toraemon looks like most cat-model robots, being yellow, but he also has tiger stripes, giving him his name (tora means tiger in Japanese). His collar is also blue, while most robot cats (including Doraemon himself) have red collars. Toraemon has appeared in the 1979 series and manga.

(Source: Doraemon Wiki)