Eng: No that it was the largest, is a level of Mario created with Mario Editor (by Hello Fangaming), it is composed of 14 stages without interruption Flags and castles goal, and is so long that might consider it as a built-in game.
The Big Mario's Adventure (Mario Editor).zip (Size: 304.63 KB / Downloads: 4)
You needed download the Mario Editor:http://www.indiedb.com/downloads/mario-editor