Mini Donkey Kong
The Mini Donkey Kongs are Donkey Kong toys that the Mario Toy Company sells. They appear in Mario vs. Donkey Kong 2: March of the Minis. Also the key is different than the other minis. They are voiced by Takashi Nagasako who also does Donkey Kong, although in the Mario vs. Donkey Kong series, Donkey Kong has been voiced by Grant Kirkhope who voiced him in Donkey Kong 64 and Mario Golf: Toadstool Tour.
The success of the Mario Toy Company because of their earlier toys, the Mini Marios, was so great that it allowed them to expand to sell other Mini toys, including Mini Peach, Mini Toad and Mini Donkey Kong toys as well. Like all the other Minis besides Mini Marios, they are sealed in a capsule and can be set free when touched.
Mario vs. Donkey Kong 2: March of the Minis
Mario vs. Donkey Kong: Minis March Again!
Mini Donkey Kongs return in Mario vs. Donkey Kong: Mini-Land Mayhem!. They need to be taken to their own door instead of the Regular Goal. They are unlocked by defeating Donkey Kong in World 4's Plus Mode and then beating rooftop levels 7, 8 and 9.
Mario and Donkey Kong: Minis on the Move
Mini Donkey Kongs also appear in Mario and Donkey Kong: Minis on the Move. In this game, he is unlocked when Giant Jungle in the Main Game is unlocked.