This hack was created by Crying Onion for a Japanese-exclusive title dubbed Don Doko Don 2. It is based on an existing bootleg hack with a similar name. The main goal for the creation of this hack was to create a hack that feels like an official Mario game, or at least, a third-party installment made with Nintendo’s permission. It …

Super Mario Land DX is a romhack of the original Super Mario Land for the Game Boy that turns the game into a Game Boy Color game. It adds color and changes the graphics to give the game a modern look. https://www.romhacking.net/hacks/4477/

Super Mario Land 2 DX is a color hack for Super Mario Land 2 in the same vein as Link’s Awakening DX. It adds color, lets you play with Luigi (with different physics) and removes the lag. https://www.romhacking.net/hacks/3784/