Image shamelessly linked from the Super Mario Wiki. When did Pauline become a brunette in a red dress, instead of a blonde in a pink one? The Mario canon is a confusing one, indeed.
Donkey Kong, sometimes referred to as Donkey Kong '94, or Game Boy Donkey Kong, is a re-imagining of the original 1981 arcade smash. I say a re-imagining because, though the game includes the original 4 levels of the arcade game, it also includes an additional 97 (!) levels beyond that, taking place over the course of 9 "areas", comprising of stages in multiples of 4. It's an ambitious move for Nintendo, considering that it comes over a decade after the original game's release, and a solid 8 years after the incomplete NES port of the game. Despite the original titles modest graphics and sound, can that successfully translate to the small Game Boy screen? More importantly, can Nintendo devise that many levels that are worth playing through? The answer to both is, unsurprisingly, yes.