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Mr. Green
From Mwuserpedia
Mr. Green is an amazingly happy smiley; some say him to be the happiest of all, but lately Super Mr. Green has surpassed him. (However, some still say he is happier.) During the Wiki Drought, many users grew to miss the green smiley. He was popular enough to get to be an unlockable character in MarioWiki Square; he is the hardest to unlock of anything in the game. It is unknown how he got to the Super Mario Wiki (being the only green smiley until Super Mr. Green), but he has grown to be the most popular of all the others.
In Other Media
In Lost Adventures
Mr. Green cameos in comic #1 of The Lost Adventures by Uniju(it can be seen Here)