Donkey Kong RNDMZR is a likely a custom or modified version of Donkey Kong. The inclusion of "RNDMZR" suggests a focus on randomized gameplay elements, perhaps involving altered levels, enemy placements, or other game parameters.   The exact nature of the modifications is unknown without further information. The original developer and publisher would be Nintendo.

Donkey Kong RNDMZR

Donkey Kong Jr. (version)