Super BlueYoshi Kart 1.1 is a custom ROM hack, or modification of an existing game, likely based on a Super Mario Kart or similar kart racing title. The "BlueYoshi" in the title suggests a visual modification involving Yoshi, a popular Nintendo character.  Version 1.1 indicates a revised version with likely bug fixes, balance adjustments, or new features added to the original hack. The creators are usually independent developers and enthusiasts within the ROM hacking community.

Super BlueYoshi Kart 1.1

Super Black Bass 2 (Japan)