Super Mario Land DX
Super Mario Land DX is a hack for the Game Boy.
About this hack
Super Mario Land DX is a hack for the Game Boy. In short, it reworks the graphics. The full list of changes, the credits and the instructions are on the creators' page.
Playing it
The patch is applied to your own copy of the original game, following the creators' instructions. The game itself is not included and is never linked here.