If you've ever played Super Mario, The Legend of Zelda, Pokemon, Wii Fit, Star Fox Adventures, Donkey Kong, Smash Bros, Kirby, (the list goes on and on) you have Satoru Iwata to thank.

As well as helping to create so many of Nintendo's most famous games, he was also responsible for the DS and Wii.

The big boss once described himself as having the "brain of a games developer" and "the heart of a gamer".

He's died from cancer at the age of 55.

Satoru Iwata started as a programmer in a Nintendo subsidiary in the 1980s and became Nintendo president in 2002.

His aim was to make gaming less complex and open to everyone. He was popular for his friendly attitude and sense of humour.

Hundreds of moving tributes have now been posted online. These are just some of them:

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