Mini-Doras are one of Doraemon's gadgets.
Mini-Doras were robots created by the Matsushiba Robot Factory per Time Patrol's request to celebrate Doraemon's heroism in helping them to arrest two terrorists.
Being smaller clones of Doraemon with different paint jobs, they are sentiment automatons that act as tiny helpers, capable of performing wide variety of tasks while communicating with the "Minidora" language. They appear to be capable of understanding other types of human languages.
They also have the ability to use gadgets, albeit to a lesser extent due to their size. However, they are not as effective as Doraemon himself or other similar machines such as Dorami.
Like Doraemon himself, they are agitated if referred to with the alias "raccoon".