Mario vs. Donkey Kong is a puzzle-platformer released for the Game Boy Advance in 2004.
Donkey Kong is sitting in his house one day scrolling through television channels, when a commercial advertising Mini-Mario toys catches his eye. Immediately enthralled by the toys, Donkey Kong rushes to the toy store to buy himself one, only to find that the store is sold out of the toys. Donkey Kong then looks over and sees the manufacturing company of the Mini-Mario toys, and invades it of all its miniature mechanical plumbers. Before Donkey Kong can escape the factory, Mario himself catches the ape running away with the toys. Mario now has to go on a mission to free the Mini-Mario toys from Donkey Kong.
The gameplay of Mario vs. Donkey Kong is similar to the standard Super Mario games - use Mario's agility and jumping ability to get through the level. The difference is that this game's mechanic is more based off the Donkey Kong arcade game. Mario must overcome various obstacles to use a key to unlock a keyhole and also to save the Mini-Mario toys trapped inside glass spheres.