However, with the release of Donkey Kong Country later that same year, Donkey Kong was given a new personality and a new home.
Donkey Kong's exact role in the Mario franchise is somewhat hazy.
His original appearance portrayed him as a villainous or confused ape with unequaled strength. The 1994 Game Boy Donkey Kong was the first game to feature the tie (a red tie with the letters "DK" printed in white, later changed to yellow), but otherwise Donkey Kong is the same as he was in the original.
Donkey Kong is in need of rescue during Donkey Kong Jr. In Donkey Kong 3, Donkey Kong is a main villain once again, although this time, he does not fight Mario (who had gone on to star in his own series and would not meet with Donkey Kong again until much later).
In this game, Mario actually kidnaps Donkey Kong as punishment for kidnapping Pauline and stands guard next to his cage with a whip, sending various enemies like Snapjaws and Nitpickers to attack Donkey Kong Jr. In this game, Donkey Kong goes on a rampage inside a greenhouse, and the cousin of Mario and local exterminator named Stanley is called in to defeat him (along with various insects that are destroying plants in the greenhouse).
Note in this case that the "unintentionally" is an important part of this trope: if the excuse the villain makes is flimsy , it's likely not this trope.