Super Mario World - Mushroom Kingdom Meltdown (Hack)

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The story is based on a mysterious enemy who blows up the Mushroom Kingdom with a nuclear bomb at sometime in the future. Mario (and maybe Luigi) follow the time traveler through his time machine, picking up clues and hints to discover when the Mushroom Kingdom is destroyed. Now the Mario brothers will try to prevent the explosion, even though it hasn't even happened yet… Or has it?