Donkey Kong Game Boy

The player takes the role of Mario, who is a construction worker instead of a plumber in this game. The large ape Donkey Kong kidnaps Mario's ladyfriend Pauline and carries her off to a construction site. Mario follows him up to the highest point and makes Donkey Kong fall off the platforms by pulling out the rivets supporting them, causing Donkey Kong to fall a height of 100m, but Donkey Kong stands up again, takes Pauline, and escapes with her into Big-City. Mario pursues the two.

What follows is a chase throughout many different locations. Mario fights and defeats Donkey Kong at the end of each world, but Donkey Kong always stands up again and takes Pauline to the next location. Donkey Kong is aided by many of his friends as well as his son Donkey Kong Jr., who try to hinder Mario's progress. In the end, Donkey Kong escapes to the Tower in Rocky-Valley, where he and Mario have a confrontation on the top. After his defeat, Donkey Kong falls off the tower, but he then takes many Super Mushrooms to augment his size to giant proportions. Mario faces the Giant Donkey Kong in an epic final battle. After the ape's final defeat, Mario and Pauline are reunited as the credits roll. The ending of the game shows Mario, Pauline, Donkey Kong, and Donkey Kong Jr. posing in front of Rocky-Valley for a holiday photo.

Source: mariowiki.com