Mario vs. Donkey Kong: Mini-Land Mayhem! is an action puzzle game for the Nintendo DS and the fourth game in the Mario vs. Donkey Kong series. Notably, it is also the last Mario game released for the console, being first launched in late 2010. The base gameplay and objectives of this game are mostly the same as in previous titles, being centered on bringing all the Mini toys safely to the goal in each level. However, the gameplay is now focused on tracing paths and bridges for the Minis to use, more so than simply toggling blocks and buttons to determine their path as in previous games. Most future titles in the series, such as Mario vs. Donkey Kong: Tipping Stars and Mini Mario & Friends: amiibo Challenge, would continue to follow this construction-based gimmick. Mini Pauline toys make their debut with this game, joining the cast of Minis. They are the highlight of Mario’s new theme park, despite them appearing late in the game as playable characters. Alongside the main game, a level editor is also present in a mode called the Construction Zone, where players could design their own levels. A significant feature of the game was its Wi-Fi compatibility, using the same system as in Mario vs. Donkey Kong 2: March of the Minis. Every two weeks, Nintendo held challenge contests where the player could submit a level that was subsequently judged by other players, with the top-rated level being announced as a winner candidate at the end of a contest.