Jumpman

Jumpman was the original name of Mario when the game Donkey Kong was created. Right before they released the game in America, Shigeru Miyamoto and his team thought that he deserved a name change, during that day, there landlord came in, whom was named Mario. They liked the name and changed Jumpman to Mario, and released Donkey Kong in america with that name. Later on, when Donkey Kong Jr. came out, they changed Jumpman to Mario in Japan.