This is a complete hack of Super Mario Bros. 3 with a very, very blue theme. It swaps the original palette for a cool, monochromatic look across all its new worlds. For fans of the original, it's a fresh coat of paint that's absolutely worth a play.
The gameplay retains the tight, classic platforming feel. It's not a chill adventure, requiring the same fast reflexes and precision as the original. The main surprise is exploring those brand new worlds designed around the blue aesthetic. Give it a go if you want a familiar challenge in a new color.