(From Wikipedia)

Super Mario 3D Land is a 2011 platform game in the Super Mario series developed and published by Nintendo for their Nintendo 3DS handheld game console. It was released worldwide in November 2011, beginning in Japan. It was the first Mario game to be released for the 3DS.

Super Mario 3D Land is unique from other games in the Mario series, as it combines elements from both traditional 2D Mario side-scrolling games and modern free-roaming 3D Mario games. It also introduces new additional gameplay mechanics and power-ups. The main story is similar to previous Super Mario titles, centering on Mario's efforts to rescue Princess Peach, who has been kidnapped by Bowser.