This version of Donkey Kong Jr. was released on Moon Cresta hardware, resulting in altered visuals. The original Donkey Kong Jr. was created by Nintendo. This version likely features the standard Donkey Kong Jr. gameplay but with a different visual style due to the limitations or characteristics of the Moon Cresta hardware. The 'Bad Colours' annotation points to a potential graphical issue.

Donkey Kong Jr. (Moon Cresta hardware)

Donkey Kong II - Jumpman Returns (V1.1) (hack)