Super Mario Land is a 1989 platform game developed and published by Nintendo as a global launch title for the Game Boy. It is the first Mario platform game to have been released for a handheld console (not including the earlier Game & Watch) and one of the first four games developed and released for the system. In gameplay similar to that of the 1985 Super Mario Bros., but resized for the smaller device's screen, the player advances Mario to the end of 12 levels by moving to the right and jumping across platforms to avoid enemies and pitfalls.
https://en.wikipedia.org/wiki/Super_Mario_Land