Junior (II)

This mysterious pink gorrila is a Kong who is identical apart from colouring, (s)he only ever appeared in Donkey Kong Jr. Math and various re-releases of it.

Donkey Kong Jr. Math
In this game the Pink Donkey Kong Jr. made its only real appearance. Here it was a playable character in multi-player mode and it was pitted against Donkey Kong Jr. in a test to get to a number held up by Donkey Kong by doing various maths sums. It did not appear in it's re-release Donkey Kong Jr. + Jr. Math Lesson.

Animal Crossing
In 2004 the anonomous pink gorrila made one final appearance in his exact same role as Donkey Kong Jr. Math, he is playable on an unlockable NES which has Donkey Kong Jr. Math on it.