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.
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.
Mini Donkey Kongs are playable in the Construction Zone but Special Kit 3 has to be unlocked first. There are also Fire Mini Donkey Kongs.
Mini Donkey Kongs returned in Mario vs. Donkey Kong: Mini-Land Mayhem!. They need to be taken to their own door instead of the Regular Goal.
