Explore a new mysterious world as you join Mario and the rest of the gang in this fun platformer game hack called Phenomenal Mario World! Phenomenal Mario World is a fan-made ROM hack of the very popular game Super Mario World for the Super Nintendo Entertainment System (SNES). This ROM hack features 9 levels with 11 exits. This "Choconilla" hack maintains the traditional gameplay of the original Mario game. In this game, the evil Bowser kidnapped all of Yoshi's friends and Mario must save them all before it's too late.