Punch-Out!! is a game released for the Nintendo Wii that, like previous games in the Punch-Out series, is a boxing game where the player takes on various challengers to achieve title belts. In this particular version, Donkey Kong appears as one of the challengers.
Doc Louis: [after Little Mac's second round with Donkey Kong] Listen up, son! If you're havin' trouble...maybe I should call my plumber! Ha ha ha!